ITEM NAME:Window Gate Security Pull Ring Spring Bounce Door Bolt Aluminum Alloy Latch P2M4 Window Gate Security Pull Ring Spring Bounce Door Bolt Aluminum Alloy Latch P2M4 100% brand new and high quality Aluminum automatic door bolt, spring loaded, rebound extraction ring, easy installation. The high quality door bolt provides greater security for doors, doors and windows. Wonderful replacement to replace your old or damaged one. size:4.3*4.4*4.2CM Material:Aluminum alloy colour:black Package Contents: 5 * Spring latch 20 * screw