Mini Square Spirit Level Wrench With Hoop Chain Tool Gadget Fr Wall Mural Hanging TV Features:Made of excellent acrylic materials, the glass has a light transmittance of 92 percent, so the bubble will show the level directly. It is more widely applicable to display the level of timber measuring tool, industrial equipment, medical devices, desktop, camera and other places with higher accuracy. It will make it easier and more convenient to adjust the level to the highest exact angle. Place the spirit level on the surface you want to measure, the center position of the bubble inside the spirit level will show that the surface is level. Thanks to the key ring, the spirit level is easy to carry. Specifications:Material: AcrylicDimensions: app.4cmx1.5cmx1.5cm/1.57" x 0.59" x 0.59"Color: GreenQuantity: 1 pcNote:1. Please allow 1-3cm error due to manual measurement. Pls make sure you do not mind before you bid.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included:1 x Level Keychain (Without Retail Package)