Replacement Buckle Hardware for ProKnee Knee Pads The ProKnee® SmartLock® Plus Buckle Hardware Kit B is a replacement hardware kit designed for ProKnee Model 07 and Original Knee Pads. It provides the hardware needed to secure a SmartLock® Plus Quick Release Buckle to compatible knee pad straps. Complete Hardware Kit Each kit includes one leather dog tag, two rivets, and two washers for replacing worn or damaged buckle mounting hardware. The components are manufactured for proper fit with compatible ProKnee knee pad models. Compatible with SmartLock Plus Buckles This hardware kit is designed to pair with the ProKnee SmartLock® Plus Quick Release Buckle and is compatible only with Model 07 and Original ProKnee Knee Pads. It is not intended for newer ProKnee models that use different buckle systems.