Material: This bike V brake extender adapter is made of aluminum alloy which is wear resistant, durable and not easy to break. Replacing part: The bike brake extension converter can be used as a spare part to replace the old or broken accessory. Easy to install: This bike extend adaptor is small in size which can be installed on the bike easily with tools. Application: By using the bike brake extender adapter can upgrade and modify the performance of the folding bike V brake. Wide usage: The bicycles brake accessory is widely applicable which can be used in household and professional repairing shop. Specification: Material: Aluminum alloy. Color: Black, red, gold, silver, colorful. Size: Approx. 42x25mm/1.65x0.98inch. Note: There might be a few color distortions due to different resolutions. There might be a slight error due to different hand measurements. Package Includes: 2 Pieces V Brake Extender Adapters(with 2 Pieces M10 Brake Accessories, 2 Pieces M10 Fixed Screws).