[DETAIL] About this item : Compatibility: This product compatible with Burley Trailers Features: 1. Material: ?Steel with coated, which is sturdy and firm, not easy to deform or out of shape, with fine structure, durable for long time using. 2. Size & Color: Not same as photoss 100% ,may have little issues. 3. Universal design: our bike coupler attachment is suitable for QR axles and solid axles up to 12.2 mm/ 0.5 inch, proper for most bicycles and children trailers; Note: does not compatible with Breezer style dropouts. Attentions:??Before making a purchase, Please carefully considering your bike trailer models and size well . Don't make the wrong purchase. ? Customer service: If there is any problem with our products, you can get help from us,please text to us or email to me . [ATTRIBUTES] - Hign-concerned Chemical: None - Seat position: POST - Material: Metal - Hign-concerned Chemical: None - Seat position: POST - Material: Metal - Model Number: ME531653 - Brand Name: ALWAYSME - Age Range: 3-6Y,Maternity,1-2y,12+,7-12Y - Origin: Mainland China