Easy to Install: This open thermostat guard keeps your thermostat safe from unauthorized tampering and protects your walls from damage. Simply put this thermostat lock box over your thermostat and secure it with the 4 extension screws provided. You can also use glue or screws for extra stability. Bright and Solid: Our thermostat lock box with key boasts a high-quality acrylic material that is clearer and more transparent than other alternatives. You can see the display vividly without needing to open the box. It also resists discoloration and yellowing, making it sturdy and long-lasting. Applicable Scenes: This lock box with a key is designed to protect the thermostat from unauthorized access or tampering. It is suitable for houses, factories, schools, hotels, restaurants, and other places where thermostats are installed. It is widely applicable and can prolong its service life. Universal Thermostat Lock Box with Key: The thermostat lock box with key prevents your thermostat settings from tampering, damage, and unauthorized adjustment. Keep your controllers away from obnoxious fingers, protect your thermostat, and avoid high bills Durable and Long-Lasting Material: This universal thermostat cover is made of high-quality acrylic and metal (lock head) materials, extremely strong, which can effectively prevent yellowing, always keep clean and beautiful and keep a clear view inside even after long-term use 2-way to Install: The open thermostat guard allows installation without removing the thermostat from the wall, just line up over your existing thermostat and install it and do it. There are 2 installation methods of punching (Mounting screws accessories are included.) and non-punching nano glue (Not Included). If you don't want to damage your walls, you can use nano glue for bonding (no residue), so your walls will always look like new Universal Size, Suitable for Most Thermostats: You can use this for almost all thermostats and other controls. This thermostat cover can be used in restaurants, offices, churches, schools, and industrial settings. Anywhere there is a thermostat Product Name: Thermostat Lock Box