Boost your grinders performance with Standard Issue Backer Pads!Choose fromRigid (No Flex),Rubber (Minimal Flex), orSoft Rubber (Highly Flexible)pads to match your projects demands. All feature aVelcro facefor quick polishing pad swaps and auniversal 5/8 x 11 threaded adapterfor grinder compatibility. Perfect for pros and DIYersachieve flawless finishes on any surface!