This quick release plate is suitable for Beike or QZSD brand bk-03 ball head and other tripods with this kind of head, and it can also be used to replace the other similar tripods, like Zomei series, Andor..... Specification:<br> Professional camera quick release plate <br> Material: Aluminum alloy<br> 1/4 inch tripod socket<br> Quick release plate size: 50mm x 40mm x 9mm Compatible with BK-03A ballhead<br> Weight: 40.8g<br> Contains:<br>   Beike Quick Release Plate x1 <br>