This multifunctional safety lock is suitable for child protection in various places, it can replace split locks, long locks, right angle locks, etc. Usage: Before use, wipe off any dust/oil/moisture from the adhesive area to keep the surface clean. Peel off the isolation paper from the tape and apply force to the adhesive area. After 24 hours of application, the adhesive tape will completely solidify and stick firmly. Buckle design for a wide range of applications. To open, find the arrow on the larger end of the white plastic block, press the arrow firmly, and pull out the plug.