Each padlock supplied with a set of 3 brass keys - all keys will fit any of the 4 padlocks. Great for situations where key holders need access to all of the secured areas. Body (W x H x Th): 40 x 30 x 15mm. Horizontal shackle clearance: 20mm. Vertical shackle clearance: 20mm. Shackle dia: 6mm. Weight: 123g.