precise project launcher, 16 mm steel balls at ranges suitable for use on the bench top or from the bench to the floor, protractor and plumb line make it easy to set any required launch angle from 45 deg downwards to straight up
Mini-Spine, scale reduction of a real bone spinal column with all their anatomical detail. Fully flexible with arteries and nerve ends, Dimension and weight: 30cm (12in), 125gram, With stand