UPDATE (04-21):
I've now built 6 rocker platforms for friends and teammates, all with these balls. (I've bought several sets). I also now have over 6K miles on my original platform using the same two balls from this set. The original balls have held up perfectly - there is no sign of wear - and they hold pressure very well. I might make a slight air pressure adjustment around once per month, but even those are not really necessary.
The needles that comes with the pump in the kit are very cheap and do not hold up, but I consider the included pump a bonus and have long since replaced the needles with much better ones. I continue to highly recommend these balls for rocker platform use.
ORIGINAL:
From the title, I'm not kicking these around on the beach. I built a full length rocker platform for use on Zwift and needed these to act as dampers for the rocking motion. I'm using two on the platform and the other 5 sit inflated in my gym to see if any hold air better than the others. One of the balls had a defect near the valve when new and leaked pretty badly, but the rest have all held air to varying degrees, and all pretty well, for almost 2 months now. In use, they work perfectly and I can adjust the balance of the bike and trainer (and me) on the platform with a 1/4 pump in one or the other ball, but that adjustment is only needed every couple of weeks and I would say the balls easily hold 80-90% of their pressure for at least a month or two if not much longer. I have about 2K on the trainer with these balls and they show no signs of premature wear so I think these are a pretty good option if you are building a Zwift platform.
I'm sure they would kick around the beach nicely too.
OK, we have thrown around the spares in the pool and they were a hit with friends and their kids. So I guess these are all around a great product that I would buy again.
| Brand | NDN LINE |
|---|---|
| Material | pvc |
| Color | Red, blue, green |
| Age Range (Description) | Kid |
| Item Weight | 15.2 ounces |
| Sport | playground |
| Item Diameter | 5 Inches |
| Number of Items | 3 |
| Item Package Dimensions L x W x H | 10.91 x 10.2 x 4.8 inches |
| Package Weight | 0.5 Kilograms |
| Item Dimensions LxWxH | 10.9 x 10.1 x 5.3 inches |
| Brand Name | NDN LINE |
| Model Name | 5 Inch Playground Balls |
| Suggested Users | PLAYGROUND BALLS, SCHOOL BALLS, PE SUPPLIES |
| Manufacturer | NDN LINE |
| Part Number | SPS-3COL |
| Model Year | 2016 |
| Style | 3 Ball Set (5", inflated) |
| Size | Set of 3 Inflated |
