Check the listing for details. LABLT 71Set 2" Roll Lock Sanding Discs Set W/ 1/4 Holder Die Grinder Disc. Condition: New, Made in United States. Listed at 19.73 USD. Specifics and features: Less Replacement Time: Supported by the torque spiral, conditioning discs can be easily and quickly screwed onto the disc pad with a simple twist-off, which enables quickly disc changing to ensure project continuity and make your machine installation less time. Discs remain secure in even heavy-duty applications. Non-Woven Surface Conditioning Discs: Made from premium Italian non-woven. The non-woven web structure of the sanding disc can have better elasticity and plasticity for polishing objects of various shapes. The open web abrasive material which enables cool disc running and reduces the risk of heat induced warping. Come with 3 kinds of grade Coarse/Medium/Fine. .