Angled bicycle trailer hitch coupler for most bicycle trailers, 2 bicycle trailer hitch couplers for children's and dogs, bicycle accessory

【Portable】 Easy to install, the trailer hitch features both vertical and horizontal mounting holes. So, regardless of whether your bike trailer hitch has vertical or horizontal holes, it will fit perfectly. 【Family Fun】 With this additional trailer hitch, mom and dad's bikes can be equipped to tow a child trailer, and your children will enjoy cycling together. Another bonus: when your child gets tired of riding, you can attach it to the side of the bike. [Size] Rear axle mounting hole diameter: 11 mm Trailer link mounting hole diameter: 7 mm Recessed area diameter where the axle nut is screwed: 21 mm Bottom plate length: 55 mm [Compatibility] Multi-compatibility bike rack, suitable for most bikes. Note: All data is measured manually, please allow 1-3cm error due to differences in light and display. There may be color differences; please refer to the actual item received.