Kool Stop disc pads are made from organic materials that are blended and bound together using a resin. The compound does include small amounts of copper which improves the braking formula. We have found during testing that our disc pads perform better than OEM disc pads, provide higher braking power, reduce squeal, provide consistent braking power throughout the life of the disc pad and are rotor friendly.Features:- Disc brake pads suitable for: Tektro Lyra, Tektro IOX, Tektro NovelaSpecifcations:- Type: Disc brake pads- Weight: Approx. 15 g