3 Unbreakable acrylic shockproof vials Vial gradient lines for measuring slopes up to 2 percent grade Angle finder with gradient markings every 5 degree to easily find the degree of any slope Rare-earth magnets for the strongest grip to any metal surface Fine milled surface with v-groove for accurate and easy placement on pipes and curved surfaces
Item# : SPM9922611202
Model # : 935-10