Product Specification: Pen diameter: 8.5 x 5.5 x 2.5 cm Weight: 159 g Material: Stainless steel 1. Portable and easy to install: The drawbar features both vertical and horizontal holes, making it compatible with bicycle couplings regardless of hole orientation. 2. Enhance family outings with additional trailer hooks. Compatible with both mother's and father's bicycles to tow children's trailers. Your child can enjoy a comfortable bike ride. Bonus feature: If your child becomes tired, the trailer can be attached alongside the bicycle. 3. Constructed from sturdy and safe steel material for reliable performance. 4. Includes a compatible bicycle stand with multiple connection options, suitable for most bicycle types. Color: As shown in the image Package includes: 1 x Bicycle trailer hook Note: - Due to manual measurement, slight variations may occur. - Color may vary slightly due to monitor display differences.