The EDC Tube Strap Mount is a flat mounting bracket with an included OneUp EDC Tension Strap. It lets you carry a spare tube without scratching or scuffing your frame. The strap&&';;s adjustable 355mm length lets you carry other stuff too, and it&';s replaceable. The EDC Tube Strap Mount is compatible with all standard water bottle mounts. The EDC Tube Strap Mount was designed to be bolted underneath your top tube, using the accessory mount found on many modern mountain bikes. However, it also works great with any standard water bottle mount or additional accessory mounts. Included (2) Mounting Bolts (1) EDC Gear Tension Strap (1) EDC Tube Mounting Bracket Weight (with EDC Strap): 62g Weight (w/o EDC Strap): 44g Material: Injection molded PA + 35% GF