12-Tube Wooden Test Tube Rack, 9" Wide, for 20mm Tubes Physics_Heat & Thermodynamics Pack of low-form borosilicate 3

Pack of low-form borosilicate 3

Double-walled in aluminum to minimize heat exchange with the surrounding air

Hand-painted arterial red and venous blue vessels trace the full systemic and pulmonary circulation across a mounted human figure for cardiovascular teaching

and major vessels of the human heart

these concavity microscope slides hold liquid samples for hanging-drop preparations and observation of specimens in suspension

12-Tube Wooden Test Tube Rack, 9" Wide, for 20mm Tubes Physics_Heat & Thermodynamics Pack of low-form borosilicate 3Beech wood test tube rack holds 12 tubes up to 20mm diameter in a 9 inch frame for organized storage during chemistry and biology experiments.