Test Tube Rack with 15ml Plastic Tubes, Rack Set contains twelve 15ml screw top graduated plastic tubes and a brightly colored two tiered test tube stand
Hand Held Centripetal Force Kit, Kit Includes: Plastic Handle, Rubber Stopper, String, 20 Washers, 2 Paper Clips, Provides The Necessary Tools To Discover Properties Of Rotational Dynamics. A Rubber Stopper Swings Around On The End Of A String Counter Balanced
Test Tube Rack, Material: Stainless steel, Sturdy Z-shaped rack made from a single sheet of heavy gauge, Features 25 wells in 5 rows, for tubes up to 16mm in diameter, Polished, smooth surface facilitates easy cleaning and