For Door Thickness 16-20mm, Height: 2.4mm(1.2mm x 2). Ideal for Corporate Offices, BPOs, Banks, Home Furniture:Wardrobe, Kitchen etc., Lockers: - Club, Gym, Hostel,Factory, etc. Retail Showrooms, Display Units Watches, Jewellery, Gadgets, etc. Four digit combination lock for keyless operation.The combination can be reset to any four digit number,providing up to 10000 possible combinations. Resolve forgotten secret code easily & rapidly with secret code retriever key.