lowest price with best quality for polishing the metal , steel and so on cylinder type : 2.5" x 2.5" 1.5" x 1.5"tapered type : 2.5" x 2.5" 2.0" x 2.0"mushroom type : 4" 3" 2"Qty per set : 2pcs per size , then 14pcs per setpacking : 14pcs per colour inner boxmaterial : non-woven abrasive (3M)colour : red / green / grey