About this product:
? Size: This product is used for most products, the diameter is larger than you see, but you can adjust it with a tool to make it very stable. Diameter of the hole in the tow bar where the trailer is attached: 6.8 mm. Diameter of the recessed surface where the axle nut is screwed: 21 mm. Diameter of the hole in the tow bar where the trailer is attached: 6.8 mm. Length of the base plate: 55 mm.

Portable design: bicycle trailer with vertical and horizontal holes on the tow bar, so no matter which tow bar hole your trailer has, vertical or horizontal, it will work perfectly for you.

? Multi-compatibility: Made of sturdy steel with a tow arm welded at an angle of approximately 45 degrees for an ideal mounting position for many types of bicycle trailers.

Stable: very practical to use. Simply attach a tow bar to all bikes in your house and you are ready to use the trailer with all bikes. Once you have tightened the wheel properly. It will sit securely in place.

? Family fun: With an extra trailer, mom's and dad's bikes can be used to pull the children's trailer, your children will love the bike.