Ideal Tilt Reading - Monitors tilt from -50 to 50 degrees. Brass ball rides in special damping fluid for smooth, accurate readings. Large, Easy to Read Display - Brass ball instead of bubble included in bright Saturn yellow tube assembly. Large size and engraved/hand painted numbers and indicators make for a functional, easy-to-read display. Shatterproof Design - Tube assembly is made out of a rugged copolymer "flex tube" for ultimate durability. Lev-o-gage is built to last. Mounts with 3M VHB Tape - Lev-o-gage includes a piece of 3M VHB (Very-High Bond) tape on the back for easy "stick-on" mounting. Made in USA - From durable, high-quality materials. One of the must-have leveling accessories for your motorhome, 5th wheels or travel trailers.