"The Ergocap® High Performance is a perfect fit for those crutch users looking for an all-terrain, universal tip that is equipped with the latest technology in crutch tip performance. Ergocap fits all standard tubes up to 80mm and is universal, designed for 99% of crutches, canes, or standard tube mobility devices. "The Ergocap® Provides stability & balance at any angle in which it is positioned~Reduces the vibration and impact with the ground~A universal crutch tip that fits any crutch!~Anti-Slip & promotes a perfect gait (Heel-Flat-Toe)