Features: *High-quality material: This product is made of high-quality material, which is wear-resistant and durable, and can be used for a long time. *Exquisite workmanship: This tool is exquisitely made with excellent materials, which can give you a good experience of using it. *Great Accessories: If the space is too small to fit the coupler, this adapter can help extend the distance to create more space. *Increased Safety: This adapter helps to extend the distance between the tow bar and bike tires. That way the trailer hitchs doesn't hit the tire when the bike is rotated to a stop. *Practical: With this adapter, the back of the bike rack will not be obscured. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Material: Stainless steel Size: As Shown Package List: 1 set x Attachment Screw