EASY TO INSTALL: with included plate or remove plate to attach mount direct by bolting up through the bottom or through the top,turn the switch after and it is locked. MATERIAL: Heavy duty engineering plastics,which is durable and sturdy. SUPER WATERPROOF: The pack mount lock has weather proof,covering the face of the lock to prevent dust, dirt, debris and moisture from entering the lock. SCOPE OF APPLICATION: Suitable for Gallon Tank. DESIGN: The unique adds strength and provides extra tightening . Types:10L Colour:black Material:plastic Package Contents: 1 x can mount lock Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.