Another staple in the HiTech Collection. The Thunder Clapper levels up your cliff and grip game. The sloped or flat grips are attached to wooden backers that swing shut when completed. One could say, this is the only obstacle that applauds Ninjas after completion. Check out the video on the Thunder Clapper to see how it's done but keep your hands on the grips as you don't want to get pinched!
 
The Thunder Clapper comes in black but you can choose a sloped, beveled or flat grip - and you can choose your color! Pipe clamps are included.