Product Overview For use with model KN-1 and KN-3 knee pads. Replacement Straps for Ultralight Knee Pads Set Of 4 Replacement Straps For use with model #KN-1 and #KN-3 knee pads. Reviews (1 review) Write a Review 1 Review Hide Reviews Show Reviews 4 Needed replacement Posted by Unknown on Oct 22nd 2017 The product arrived in a timely fashion and performs as expected. I would buy these again when needed. Thank you.