Dimensions: 3" x 2.25" x 1". Waterproof housing. Bi-Directional rotating bezel. Sapphire jewel bearing. Seven tritium micro lights allow for navigation in low-light conditions, without the need for a flashlight or any other light source. Tritium micro lights remain luminous for over twelve years, maintenance-free. Shock, water, sand proof, and functional from -50F to +150F. Accuracy: +/- 0002 mils. Equipped with a magnifying lens, sight wire, and dial graduations in both degrees and mils to ensure accurate readings. The Copper Induction Damping System slows the rotation of the magnet without the use of liquids. Black nylon lanyard. Belt clip. Includes a tear-proof instruction card. Black nylon pouch. Aluminum construction. Color: Black. Bulk packed.