Assorted 8 pieces of 100mm 4" WET diamond marble polishing pads (2.8mm thick) with pad holder. They are excellent quality and velcro backed pad in grit 50, 150, 300, 500, 1000, 2000, 3000 and black buff. 1 piece in each grit, total 8 pieces. The pad holder in 5/8 inch threaded. | Suitable for polish the marble, granite or concrete, etc ...... US-BASED CUSTOMER SERVICE: Available by chat, email, phone, or visit us at our customer service center in La Crosse, WI.