- PRECISION-MACHINED and anodized 9-inch aluminum billet
- FOUR ACCURATE CYLINDRICAL VIALS in 0 , 30 , 45 , and 90
- DURABLE LASER-ETCHED RULED EDGE for long-lasting visibility
- POWERFUL RARE EARTH MAGNETS, a precision-milled base, and a convenient v-groove for pipe applications
- CONVENIENT HANGING STRAP for easy storage and transportation