2 Sets Burley Bike Hitch Bike Trailer Hitch Bike Coupler Attachment Adapter Replacement Angled Connector 12.2MM Bike Trailer Hitch Compatible With Bur f26 Item weight 190 grams Item dimensions LxWxH 4.72 x 3.94 x 1.18 inches Frame material Steel alloy< /p> About this item What you will get: Comes with 2 sets of bike trailer hitch coupler, each set is 2 tools, enough to meet your daily or share with your family or friends Universal Design: Our bike coupler hitch is suitable for QR axles and solid axles up to 12.2 mm/ 0.5 inch, suitable for most children's bicycles and trailers; Note: Not compatible with Breezer style dropouts Sturdy and durable material: The bicycle trailer hitch is made of quality steel, which is sturdy and firm, not easy to bend or deform, with a structure thin, durable for long time use Functional Tool: With our bike hitch attachment, you can take your son or daughter and pets on the bike and enjoy that quick interaction , and have a great time riding together&lt; /p&gt; Portable to Carry: This sturdy bike coupler attachment is not large, you can easily carry it in your backpack for outdoor activities, connect your child's trailer to your bike , you can mount it on the rear axle of the bike Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.