Universal Bike / Cycle BRAKE BLOCKS (Threaded. Caliper Brake Style) 36mm Length (CENTRE STYLE) - FREE SHIPPING! FREE VALVE CAP UPGRADE WORTH $4.99 Hex Bolt Style - Secure & flush fit up to your rim giving maximum braking performance 40mm Length - A large contact surface area with water clearance grooves Centre Design - Gives variable braking pressure and brake feel SKYSCAPE CAPS WORTH $4.99 - INCLUDED FREE! (Schrader or Presta. See Product Description) IN STOCK - Ready to ship now!