Suitable for connecting various 1 / 4-20 screw holes , suitable for your DSLR camera configuration 1 / 4 male to 1 / 4 male screw connection rod adjustable angles photography bracket is suitable for motion cameras , fill lights , phone clips , tablet clips , and surveillances cameras Aluminum alloy+iron ensures safe daily use , durability , lightweight , compact structure , easy to carry and use , , and high stability The top external thread is 1 / 4-20 inches , and the bottom external thread is 1 / 4-20 inches , supporting 360 degree rotation and used to connection other products This is a 1 / 4 inch male to 1 / 4 inch male threaded adapter ball clamp manufactured according to international standards , with standard tripod mounting threads