The Telescope Mounting Plate with reference scale of 1mm increments on both sides providing an easy and stable way to attach photographic equipment on Vixen style dovetail saddles. Ideal for mounting camera, ball head or other devices with 1/4"-20 or 3/8"-16 threaded female socket for astrophotography. Counterbores and threads are prepared on the ends for DIY L bracket. Standard Vixen-style Dovetail Standard Vixen-style dovetail on the bottom is compatible with Vixen-style saddles from any brands. 1/4" and 3/8" D-ring Mounting Screws Stainless steel D-ring screws for attaching to a variety of cameras or other devices with 1/4" or 3/8" threads. Screw with a handle is easy to tighten directly by hand, or by other objects such as coins. Long Slot Design 87mm / 3.42" slot for mounting and properly balancing devices. Reference Scale The mounting plate with reference scale of 1mm increments on both sides for easy adjustments. Enable DIY L Bracket Two counterbores on the side and two M5 threaded holes on other side, for DIY L Bracket by two plates. ( Note: the listing only contains one plate, please order two plates for DIY L bracket. ) Anti-slip Secure Connection Six anti-slip rubber pads enhance the grip between mounting plate and devices, and protect devices from any damage due to mounting. One safety stop screw in bottom is to prevent drop by accident. Specifications: Dimension: 120x43.5x15mm / 4.72x1.71x0.59in Net Weight: 109g / 3.84oz Package included: 1 x 120mm / 4.72" Vixen-style Mounting Plate 1 x 1/4"-20 D-ring Screw 1 x 3/8"-16 D-ring Screw 2 x M5x16mm Hex Socket Screws 1 x 4mm Allen Wrench 1 x 2.5mm Allen Wrench