3M low profile finishing disc pad. Molded J hook hor tricot loop. Attachment type: Hookit. Color: yellow. Converted form: backup pads, disc. Density rating: firm. Equipment - machines: disc sanders, random orbital sanders, rotary sanders. Form type: molded. Front color: yellow. Hook type: 1. Maximum opm: 12000. Maximum rpm: 12000. Shape: 15 degree. Thread size: 5/16-24 exterior. Measures 5-inches diameter by 3/8-inches thick.