There is just no excuse for these.If you have money and a death wish (like I do) then by all means buy them.
Here's the skinny:
Special Features:
1. Knee cuffs (detachable) which are very comfortable and strap aound the knee, conforming to the individuals leg shape and size. These also allow the Poweriser to be taken on and off with exceptional convenience.
2. Wider, stronger binding holds the foot more securly and comfortably.
3. Knee cap holder is now an alumimum knee cap which is stronger and better supports Knee cuffs. The new knee cap holder does not need the knee cap pad.
* Special connection sets with high-quality metal
* Sliding bearing for force saving and for more jump strength
* Strengthened foot mounting plates
* Self-locking nuts after German standard
* New mounting plate systems with increased comfort
* Extra Strength rubber buffers
* New feather/spring shroud with high-strength plastic

A genuine top quality jumping stilt available at an affordable price to the end user, the Poweriser consists of a thick aluminum frame with a long lasting, quality fiberglass leaf spring as the backbone.
A twelve month general warranty (six months on Spring and Rod-D parts) serves as peace of mind for you, our buyer, that this outlay is worthwhile.
Seriously if you are even thinking about buying this you must be nuts. So when you die or seriously maim yourself don't hold us or anyone but your stupid self liable. There I've said it. Now I've got to go out and practice on mine. I will definitely do a flip by the end of 2008!