specification: Material: plastic, metal Suitable for all door thicknesses: 15mm-27mm / 0.59-1.06 inch Cut hole (diameter): 20 mm / 0.79 inch Each lock includes 1 lock body, 1 knob, 1 ring and 1 board Package Contents: 50 x push lock 200 x screws 50 x boards Only the above package content, other products are not included. Note: Light reflection 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.