Specification: Material: ABS nylon +304 steel wire Colors: White, Black Wire length: 200mm Installation lock size: 56*38mm Feature: 1.Strong 3M glue, increase the sticking strength, grasp the veneer like a sucker 2.Thickened fixed head, easy to lock, non-locking, corrosion-resistant, not easy to rust, insulating rubber sleeve, make the whole more beautiful 3.The square base, upgraded 60° angle design, compared with the round base, the utilization rate of 3M adhesive is increased by more than 30%, and the bonding is stronger 4.Child safety: Keep curious children away from windows, doors, refrigerators, etc. to avoid injury. 5.Key unlocking: viscous window lock with strong load-bearing capacity. Equipped with 2 keys to unlock, if protected properly, children will not be able to obtain them. 6.Simple installation: no drilling, no special skills 7.Wide range of applications: perfect for doors, windows, refrigerators, etc., suitable for all kinds of smooth and dry surfaces. Package Including: 1pcs*security lock+1 pcs*key+ Sticker