Check the listing for details. Bed Frame Headboard, Footboard, Rail Bracket Modification Plates + ALL Hardware . Color: Silver, Condition: New. Listed at 400.00 USD. Bed Frame Headboard, Footboard, Rail Bracket Modification Plates + ALL Hardware. Condition is "New". Shipped with USPS Priority Mail. Modification plates are used to make adjustments in order to fasten headbord /footboard to bed frame or rails. Bed Plates can be adjusted vertically or horizontally to line up with hole pattern on the headboard. You will be able to attach a queen headboard to a full size bed frame or rails. You will be able to attach a California King Headboard/Footboard to an Eastern King.. all necessary hardware is included: 4 machine screws 3" (most common) for fastening to headboard 4 machine screws 1/2" for fastening plate to frame 8 hex nuts 8 washersSize: 5" Wide x 5 1/4" Tall or 3-7/8" Tall (Smaller Side) Easy do it yourself project.order 1 and you get 2 plates and hardware this will accommodate 1 headboard if you have a footboard you will need to order 2 kits. $19.70 includes free shipping