Neewer Camera Tripod Mounting Plate with Quick Release Slot Slide Block 1/4" and 3/8" Threaded Holes for 15mm Rod Clamp Support and Standard Tripods This is a Camera Plate can be used to mount any small or medium sized cameras This is Tripod Mounting Plate for Rod support with 1/4" and 3/8" threaded holes for standard tripods Simple, strong and inexpensive, made of solid aluminum, hard anodized in matte black finish Screw material: alumimium alloy,Steel. thumb screw, thumb direction can be adjustable Fit standard 15mm rods supports, 6mm apart centre to centre. (Rods supports not included)