Viper Floor Maintenance Pad, 16-Inch, Yellow 1500 Grit, Pack of 2 (60638)Viper Floor Maintenance Pad, 16 Inch, Yellow 1500 Grit, Pack of 2 (60638) Yellow 1500 Grit Viper Diamond Impregnated Floor Pads are made in the USA! Compare and save! Made with a superior process that distributes diamonds evenly throughout the fibers of the pad and eliminates scratches by removing rogue diamonds (larger than the stated grit size) via superior sorting method Yellow 1,500 Grit Pad is the equivalent of the Twister Step 2 Yellow Pad used