Product size about : 8-38cm/3.1-14.9in 6.3cm (2.48in)*3.7cm (1.46in)*3.7cm (1.46in) Net Weight: Approx. 34g Product color: As shown in the figure Product material:Aluminum Alloy For Seat Support, Plastic For Base product features: 1.Universal Compatibility: This sturdy bike taillight seatpost bracket is designed to fit most bicycle models, ensuring a secure and reliable attachment for your tail light. 2.Shockproof and Anti-Slip: The bicycle tail light saddle support provides excellent shock absorption, preventing unwanted vibrations and keeping the light stable even on bumpy rides. 3.Adjustable Angle: With the MTB bike light holder, you can easily adjust the angle of your light to suit your riding conditions and enhance visibility during night rides. 4.Multifunctional Usage: The cycling action camera mount allows for the installation of either an action camera or a compatible with Varia tail light, offering flexibility depending on your needs. 5.Sturdy Aluminum Alloy Construction: Made of high-quality aluminum alloy, this bicycle saddle lamp mount is built to last, providing strength and durability for long-term use. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can contact us at any time. We will give you some suggestions, but for your reference only. Shipment includes: 1 pc Bicycle tail light bracket