Amazing performance for ball machine use. Consistent bounce and nice felt quality.

I use mostly pressureless to play with my machine. It could be the new machine I have, but I feel like the felt got eaten off of these quicker compared to the Triniti club or Pro. Beyond that, I literally played these balls to the rubber and they still bounce like they are fresh out of the can. I wish the felt was just a little bit more durable, and I wish they could keep them in stock XD.

Balls feel good. Compared weights against a US Open ball and they were almost identical weight. Using these balls in my ball machine. Balls are comfortable to hit with, the bounce is good. I like these better than the pressureless Penn's. So far so good.

I love using these pressureless balls! They last longer and so much better for our environment.

Okay, so these pressureless balls are excellent, honestly one of the best purchases I've made in recent history. Seriously.

I'm teaching my 15 and 13 year olds tennis. I've never used or even heard of a ball like this...airless, no worries about decompression with aging. These things are fantastic. And reasonably priced.

As others have said, they absolutely feel and react as well as typical balls that are maybe a week old. Not SUPER springy or tight but really, really good...and for our purposes, they are exactly straight up perfect. The felt is great, they hit great, very high quality, all good.

So between this case of balls, and a fantastic, rolling, ball picker-upper we got from NEEWER, and a wheeled ball caddy from PunzQ Sports (on Amazon), we are SET for practicing. We just put in a long, really great practice today, and having tons of balls, a quick way to pick them up, and this caddy...the whole experience was extremely pleasurable. I can't recommend these pressureless balls more highly.

Feel very similar to week old pressurized balls and have great durability.

I am satisfied so far with the new Diadem pressure-less tennis balls, they bounce a bit more than the pressure ones and are definitely a little more heavier, so there is some adjustment to do when practicing with the tennis ball machine. I will update my review after some time to evaluate bounce and weight again.

Got these for my ball machine about a month ago. I wanted to get a purpose built ball that could stand up to a ton of ball machine use. So far the balls are holding up really well. I will say, I’m at some altitude (4,500’) and the balls are really energetic and make a great sound.

I got these for my ball machine and so far, they feel pretty good. We'll see how the felt holds up over time, but it's a promising start.

Bought 2 cases for the girls tennis team I coach for and so far they've been great. The ball bounces true there is a slightly different feel off the racket compared to pressurize balls but for practice these balls are great.

Been using the Wilson Trinity for a couple years and these are less expensive and perform just as well. We’ve had a couple that aren’t perfectly round but overall a great feel that last for months. We’ve play 5 days a week for 2 hours and they stand up to the constant use.

These are really performing well in my ball machine, regardless of temperature outside. Great quality in feel, bounce, felt.

Great balls bounce beautifully, not overly hard by any means!!!

I use these balls with my ball machine. Compared these balls with three other brands and I liked these the best. They were the only ones that felt soft like pressurized balls. The other balls were livelier but very hard. The Diadems were comfortable.

Good lively bounce and good feeling off the racket. Just started using so I am interested to see how the felt holds up.

I've been using these pressureless balls in my matchmate ball machine for a year. Long lasting felt and consistent bounce.

This ball is GREAT for ball machine use. On first test, it performed very well and I get the feeling it will wear as well as or better than Wilson's Triniti brand.

They bounce consistently. I'm hoping they last as long as the Tretorns.

Received the tennis balls as promised. I am using them for my ball machine and they see to be working well. Time will tell about their durability.

Received the tennis balls as promised. I am using them for my ball machine and they see to be working well. Time will tell about their durability.

Good for ball machines

I was having trouble finding pressureless balls that bounce well for my ball machine. These are great and consistent. I am planning on buying more.

These balls are great. So far they are bouncing well after 3 sessions of practice without napping up much at all.

We like diadem pressure less ball so much. It works on hot and cold. We plan to replace with diadem ball on next purchase. 100% satisfied. However not a lot of people know about this brand. We plan to gift some to our player parents to try out. The more people try the more recognization. Good job. You are making good balls.

I've run the balls about 10 times through the Lobster and the covers are holding up very well. The Diadem balls appear to be much more durable than Gamma or Tourna pressureless balls, and performance is comparable to standard tennis balls.

I've had a case of these balls in my ball machine for well over two months now and all I can say is that they play very well. Not heavy at all. Bounce stays consistent, unlike pressured balls. I highly recommend these to anyone who uses a ball machine and wants a ball that doesn't feel like a pressureless ball on contact.

Diadem does a good job producing these quality balls. Recommend!

I bought these mainly for my ball machine (Slinger). I previously used the Wilson Triniti; however, I’ve been disappointed with the longevity. Hence, my desire to try Diadem’s pressureless ball.

It’s only been a few times; nevertheless, the bounce is good and the felt has stayed on it. (The felt on the Wilson Triniti eroded very quickly.)

Yesterday, I hit with the Diadem balls with a friend who had a new can of the pressurized Wilson US Open ball.

She thought the Diadem ball felt heavy, and I heard it as a much louder thud coming off her racket.

For me, I didn’t think it was that bad a ball (especially since the primary use would be for practicing with a ball machine). Moreover, the sound it made coming off my racket was different but not as loud as when it came off her racket. I didn’t have any arm or elbow soreness after the practice round (and I had just finished an hour long lesson before we hit).

It’s too early to tell, but I get a sense that this balls will retain their bounce and felt much longer than the Triniti. Others might refuse to play with them in a match, but I bought them for practice, not competition.

Balls delivered on time and in great condition. Balls are for ball machine and are lighter and better than other pressureless balls I have used in the past.
Time will tell but the bounce is perfect and they are not fuzzing up.
I got these during the holidays and paid under $75 deleivered.

Great balls fir practice and ball machine. They last months