Fangrui Product Features 1,Easy to Use: Designed with 15mm hole diameter with a 1 or 4in and 3 or 8in thread size, simply slide the rod clamp onto a 15mm rod and secure in place with a tightening screw for a stable and secure connection. 2,Stable Connection: Lightweight and compact, the clamp provides a secure and stable connection, preventing unnecessary movement or vibration to record clear images. 3,Quick Release: The single rod clamp allows for quick and easy installation or disassembly from the support system in just a few seconds, saving you time and effort. 4,Versatile Use: The rod clamp adapter is compatible with various camera support systems, shoulder rigs, tripods, DSLR rails and other accessories, making it a must have tool in your photography equipment. 5,Sturdy Construction: The rod holder is made from sturdy aluminum alloy, processed with CNC technology and treated with anodizing finish for superior strength and longevity, can withstand heavy use in any conditions. Specification Item Type: Single Rod Clamp Material: Aluminum Alloy Thread Size: 1 or 4in, 3 or 8in Application: Suitable for Camera Support System, Shoulder Rig, Tripod, DSLR Rail Package List 1 x Rod Clamp 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. Sold by-YJL official store