$3.50 – $3.95
Extension support ring Allow more space when doing experiments that require room Made of strong, heat-resistant cast steel Tough zinc plating protect the rings and combat rusting.
Each of these extension rings is produced from strong, heat-resistant cast steel. Tough zinc plating helps to protect the rings and to combat rust.
Made of high quality Aluminum alloy and Stainless steel.
Dual Scale - For inside and outside measurement in metric or English units. Ideal for learning preci...
Glass alcohol burner with a glass cap for extinguishing the flame and to prevent evaporation of alco...
Memory wire, 1 ft. Beaker not included.