Description: Material: The quick release plate clamp made of aluminum alloy, lightweight and durable. Compatible: The quick release plate clamp compatible with camera tripod ball head and 38mm width quick release plate. Features: 70mm plate clamp with 3x 3/8 inch and 2x 1/4inch internal thread connection hole; 90mm with 3x 3/8 inch and 2x 1/4 inch internal thread connection hole; 110mm with 3x 3/8 inch 4x 1/4 inch internal thread connection hole. Simple to Use: The tripod ball head mount clamp with double spirit level, and the mount plate with precision scale. Lightweight design, can be attached to the camera on a tripod, come with 1/4 and 3/8 conversion nuts. Size Chart: 70mm Size: approx. 70x38x30mm/2.76x1.50x1.18inch 90mm Size: approx. 90x50x30mm/3.54x1.97x1.18inch 110mm Size: approx. 110x38x30mm/4.33x1.50x1.18inch 70mm Base Size: approx. 70x38mm / 2.76x1.5 inch 90mm Base Size: approx. 100x38mm /3.94x1.5 inch  110mm Base Size: approx. 120x38mm / 4.72x1.5 inch  Package Includes: 1 Set Quick Release Plate Clamp  Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!