All Balls Racing Sintered Brake Pads (18-8037) Category_Roll Bags it is made of hard-shell

it is made of hard-shell material and 3DF AirFit soft ventilated impact foam for unbeaten safety

or if you are unsure

Piston Size: 73

Cable charger lead with female cigarette plug

Flash Point COC: 236 °C

All Balls Racing Sintered Brake Pads (18-8037) Category_Roll Bags it is made of hard-shellSintered brake pads for racing, sand, mud, and general use. Features: Advanced ceramic composites ready to withstand higher temperatures than regular Semi Metallic carbon brake pads Offer long life span and great stopping power compared to organic materials or semi metal compounds. Designed to tackle nearly any riding style you put them through.