Thank you for viewing. SLIK Head Accessory Plate II for Mounting Two Cameras This plate is made of sturdy aluminum die-cast. It is used to mount two cameras on a tripod or head. The tripod (head) mounting screw is U1/4 inch screw (small screw), and the camera mounting screws are two U1/4 inch screws, employing a "double nut system" for secure camera fixation. To mount two cameras, please use a tripod with a pipe diameter of around 28mm or more, such as "medium" or larger models (Master III, Carbon Master 814 PRO II, etc.). It also supports U1/4 inch screws (general camera mounting screws [small screws]) for tripod attachment. Product Details Compatible Equipment: Digital SLR cameras / Video cameras / Medium format cameras Maximum weight of equipment to be mounted: Within 5kg (2.5kg x 2) Size: Length 315mm x Width 50mm x Height 20mm (excluding screw part) Weight: 500g Camera mounting method: Double nut system