8.75" Tapered Nylon Cleaning Brush with Cotton Tip for 0.5-0.75" Tubes Plastic Labware_Plastic Burettes Features a glass stopcock and

Features a glass stopcock and a 29/32 size socket with an interchangeable plastic stopper

and beakers up to 4

Unfinished wood pipette rack holds 12 pipettes vertical in a 14

Brass bow-style crucible tongs measuring 20 cm combine non-sparking metal with an arched profile for safe crucible transfer around open-flame chemistry demonstrations

4-inch thickness on a polished right-angled acrylic refraction prism

8.75" Tapered Nylon Cleaning Brush with Cotton Tip for 0.5-0.75" Tubes Plastic Labware_Plastic Burettes Features a glass stopcock andTapered nylon brush with cotton yarn tip on a 8. 75 inch twisted stainless steel handle cleans 0. 5 0. 75 inch tubes, flasks, jars, and cups.