These Challenge padlocks are weatherproof and have a cap over the key hole to prevent rusting. They are robust enough to withstand the elements, making them ideal for outdoor applications. 3pc x 51mm home and garden padlock set. Keyed alike - 4 keys supplied. Shackle: 5mm diameter, 30mm vertical clearance. Size H8, W3, D4cm. Weight 0.2kg. Manufacturer’s 1 year guarantee.