Description: No key to switch, key management to get rid of the trouble. Light weight and easy to operate. Work when you slightly push in the button it unlocks and the button fully opens to pull the door open, and then to close you just push the button back in and it lock. Fit to Camper Boats, Motor homes, Static Caravans, Cabinets, kitchen Cupboards, Drawers and cupboard doors to firmly close. Specification: Material: Zinc alloy and Plastic Cut Hole Diameter: about 20mm Package Includes: 1 Piece Mini Push Latch Knob Lock 1 Piece Plate 4 Pieces Screws Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you.