Size before adjustment: 34.5 * 4.5 cm, after adjustment: 40 * 4.5 cm. Product installation: First, remove the three inner hexagon adjustment screws from the head of the tripod; second, remove the aluminum alloy from the inner part of the tripod; and finally, install. Built-in rubber inner pad, effectively bite the frame, reduce sliding, to prevent the repeated use of wear and tear paint. The surface of piano paint processing, smooth color full, long-term does not drop the paint. Reflective sticker, add red reflective sticker, bright and eye-catching, to facilitate you in the night parking accurately find the position of the TRIPOD. The rivet turns to connect, the connection is more firm, the use is labor-saving. Specifications: Adjustable Aluminum Alloy Bicycle foot support. Bend freely, do as you please. Built-in rubber inner pad, effectively bite the frame, reduce sliding, to prevent the repeated use of wear and tear paint. The surface of piano paint processing, smooth color full, long-term does not drop the paint. Reflective sticker, add red reflective sticker, bright and eye-catching, to facilitate you in the night parking accurately find the position of the TRIPOD. The rivet turns to connect, the connection is more firm, the use is labor-saving. Package Included: Attributes 1:1* Bare rack accessories Attributes 2:1* Bare rack accessories 1* Tools