describe: Material: The ball buckle is made of cold-rolled steel and zinc alloy, which is strong and durable. Project: Door stop retainer. Easy to install: The double drum lock is easy to install and use. Overall dimensions: In its natural state, the internal space size is 13mm/0.51 inches and the inner diameter is 17.5mm/0.68. Wide range of uses: With double ball function, it can be installed in cabinets, cupboards, drawers, doors, etc. Material: zinc alloy Color: as shown in the picture Package Contents: 1 x Door Easy Lock (MP-4) Contains only the above package contents and does not include other products. Note: Light reflections and different monitors may cause the item's color to differ slightly from the actual item. Measurement allowable error +/-1-3cm