Shimano Shimano B01S Resin Disc Brake Pad and Spring, 4th version of B01S pad, fits many Deore, Alivio and Acera Calipers - Philbrick's Ski, Board, & Bike
Shimano B01S Hydraulic Disc Brake Pad fit MT200 M315 - Walmart.com
Shimano B01S 4TH VERSION DISC BRAKE PAD AND SPRING | Bike Brakes