[Easy to Install ]It's aesthetically pleasing and easy and intuitive to install, but if anyone is unsure, check out the installation video. Just align it on your existing thermostat and install the anchors and screws. [Universal Size] You can use this for almost all thermostats and other controls. Prevent tampering and unwanted changes to your temperature. This thermostat cover can be used in restaurants, offices, churches, schools and industrial settings. Anywhere there is a thermostat [Long service life] thermostat lock box made of high quality Material, plastic transparent thermostat lock box, Can be washed and will not change color and yellow, long-term use can also keep the interior clearly visible. [Thermostat Guard with Key] Thermostat lock box with keys prevents tampering, damage and unauthorized adjustment of thermostat settings. Keeps your controller from pesky fingers, protects your thermostat from high bills. size: 20 x 12 x 5.7cm Material: plastic colour: As shown Package Contents: 1 x Lock Box 1 x Screw set 1 x key Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.