-For traversing or precise setups   -The optical plummet is twist-focus with 2.5X magnification   -Includes a 60-second adjustable plate vial   -The precision-machined axis rotates 360º   -Adapter is compatible with all prisms with a 24.9 mm bayonet base   -Adjustable height is 100 mm-to-120 mm   -Fits all standard three-prong tribrachs   -The over point accuracy is 0.5 mm at 1.5 m   -Black   -Weight: 1.70 lb (0.77 kg)