Features PRECISE INCLINATION DISPLAY: Each meter monitors a tilt of -10 to 10 degrees. The brass ball is placed in a special damping fluid to ensure a consistent and accurate level display EASY TO READ: Self-adhesive ball indicators made of shiny brass in components provide better visibility than traditional bubble levels CLEAR DISPLAY: The hand-drawn and shaped numbers make the mini adhesive bubble level display powerful and easy to read. SHATTERPROOF DESIGN The tilt indicator tube sets are made from heavy-duty copolymer tubes for superior durability. Can be installed inside or outside a camper, camper or trailer EASY INSTALLATION: The RV bubble level sticker is equipped with adhesive tape and comes with adhesive for easy installation. Two guide holes are included for screw mounting. Combine with the leveling block for a complete camping caravan leveling system Specification: Item Type: Bubble Level Adhesive Material: ABS Suitable for: RV leveling, medical bed leveling, wood leveling. Package List: 1 x Leveling Ruler 1 x Adhesive Tape Package List 1 x Leveling Ruler 1 x Adhesive Tape