***** **********Best Quality Guranteed. *****Quality metal large front plate for the flash shoe of DSLR cameras. *****Its sturdy weatherproof aluminum alloy plate ensures long-lasting performance. *****The silver plate comes with a hex wrench to fix to a DSLR camera flash type connection. *****Applies to the device with 20mm rail mount. To mount 1X40RD Reflex Red Green Dot Sight to a DSLR Camera. *****All metal construction and anodizing aluminium process, durable for long time use.