The SecureTech® Cabinet Slide Lock from Safety First has an easy-to-understand indicator that lets you know when this child safety device is correctly locked. It's a childproofing solution that's easy to use, to install, and keeps children safe by preventing them opening cabinet doors. The adjustable sliding system means it fits any kind of cabinet. The lock's one-hand opening action makes it very easy to release. Can be used with any type of doors, either with handles or doorknobs.