The Master Lock 5481EURD Large Select Access Key Lock Boxm has a solid aluminium body providing better resistance to attacks. Its 4-dial combination lock features large dials which are easy to read, grip and turn. Fitted with a durable weather resistant cover protecting the body and lock from the elements. It offers a large storage capacity, with space for up to 10 keys (key fobs, cards and large keys) The integrated bin neatly secures items to prevent jamming when closing the door. Ideal for storing and sharing keys from home, rental properties, home care services, cars, industrial sites. A Limited Lifetime Warranty provides peace of mind from a brand you can trust. Mounting kit included. Specifications: External Dimensions (HxWxD) : 13.6 x 7.6 x 5.6cm. Internal Dimensions (HxWxD) : 8.7 x 6.1 x 4.3cm. Technical Specs External Dimensions (HxWxD) : 13.6 x 7.6 x 5.6cm Internal Dimensions (HxWxD) : 8.7 x 6.1 x 4.3cm