At last- an inexpensive knee kicker with great features, designed to stand-up to today's jobs! The 505 knee kicker features telescoping steel tubes with five settings for length adjustment, ranging from 19" to 23". Double-engagement buttons eliminate hole elongation. The wide head features 3 nap grips, and 16 long hardened-steel pins. Pins are adjustable with nine depth settings for use with any carpet.