Neutrally Buoyant Water Ball

By Watermelon Ball

$19.95
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For your next swimming pool game, toss around a Watermelon... Ball. Modeled after a real-life watermelon, this rubber ball can be dribbled, kicked, passed, and bounced—all under water. Fill it up with water and a little bit of air to make it neutrally buoyant—its density will match that of the surrounding water, so it doesn’t sink or float. Instead, it stays suspended in the H2O.

  • Materials: PVC/TBC, natural rubber
  • Neutrally buoyant when filled with water
  • Looks, feels, and behaves like a real watermelon in water
  • Passes up to 10 feet in water
  • Bounce against pool walls
  • Can be bounced, dribbled, kicked, and intercepted
  • Made in China
  • Dimensions: 3.94" x 8.07" diameter
  • Weight: 1.28 lbs.

49 Reviews (4.7 out of 5 Grommets)

Sorted by Rating
5

Christmas Gift

by

It’s a Christmas gift! Won’t get a reaction much before June 2019!

5

so much fun

by

the kids loved it before it was lost when the house burned down in the Carr fire. After the rebuild maybe there will be another in our future.

5

My kids love this thing!

by

My 12 year old son and 10 year old daughter love this thing! They have played with it for hours on end.

5

Favorite pool toy for two summers

by

This ball floats permanently in the pool. Everyone of every age has to mess with it. It is so funny and counter-intuitive in its motion. We love it!More > < Less

5

Great for basketball lovers

by

My two boys (ages 12 and 10) love this pool toy! It can be dribbled like a basketball, and can be bounce-passed a surprisingly long ways under water.More > < Less

Items 1 to 5 of 49 total

How come this ball won’t float or sink?

About Watermelon Ball

Waterballin'

Up your swimming pool game with the Watermelon Ball.

We’ll explain. Apparently tossing around a real-life watermelon in water as entertainment is a thing. They behave differently than most air-filled balls, so you can actually dribble, kick, pass, and bounce them—all under water.

The reason for this behavior—not floating, not sinking, and sort of suspending itself mid-water—is that watermelons are made of 92% water. That makes them neutrally buoyant. But real watermelons also break and make a mess...

The Watermelon Ball is made of tough rubber. You can fill it up with water and just a little bit of air to get it at the right buoyancy. Throw it up to 10 feet under water and combine elements of football, basketball, and rugby for some unconventional aquatic entertainment. Or toss it around outside the water, too.

Turns out no part of the pool is off bounds with this summer game changer.