- Material: steel body, stainless steel accessories 2. Easy to install 3. Sturdy and durable, not easy to break 4. Weight: 57 grams 5. Description: This product is used to link the self-locking pedals and self-locking shoes of mountain bikes Kit includes: - SPD steel buckle x 2 - Stainless steel locking screws x 4 - Buckle splint x 2 - Modification In-shoe stainless steel spacer x 2