Hyperdog™ Ultra–Long Distance Wrist–Mounted Tennis Ball Launcher

From the website:

Ready... aim...FIRE! Shoot tennis balls up to 220 feet

Don’t throw out your arm.

Give even the most high–strung dogs all the exercise they can handle with this fun Hyperdog™ high–performance launching toy.

Sends balls soaring the better part of a football field away!

Patented ball pick–up capability keeps hands dirt– and slime–free.

Sturdy, rust–resistant steel with high–grade rubber launching band.

Arm brace collapses for easy transport and storage.

Stores two tennis balls when not in use.

13¾"D x 8"H.

Weighs 2 lbs.

$24.50 (two tennis balls included).