Overview Product Description Premium. Steel top. 3.02K x 2.0 x 3.0mm. Keystone top.; Sizes : .50 Product Videos Custom Field Product Reviews Write a Review Write a Review × Engine Parts Engine Piston Ring Set - Kit Part - S40568 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments