Lock Type: Anti-impact Sheets Don't need keys, press the button to lock, and press again to open. Buttons in addition to can be used for opening and locking doors, also can use when shake handshandle. High safety, no longer have to worry about the furniture door open in the during driving due to shake. Suitable for all kinds of door board in 15-18mm thickness. Can be used on Rv/, , Caravan, Cupboard, Cabinet Door, Furniture Door, etc. Weight: 300g colour:Nickel Material:Plastic + zinc alloy size:Base Size: 54x45mm/2.13x1.77 Inch(LxW) Install Hole Distance: 64mm/2.52 Inch(Center to Center) Opening Hole Diameter: 26mm/1.02 Inch Package Contents: 5*Push lock 5*board 20*Screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.