Frosted Glass Gas Jar Cover, 3 inch, 1.7mm Thick Graduations_Raised Compact metal mini boss head

Compact metal mini boss head sized for 15-mm rods

gripping objects up to 90 mm and mounting to support rods up to 15 mm for chemistry and physics setups

this three-dimensional Paramecium sectional model reveals internal structure and ciliate organization for microbiology teaching

Sprung-tip jockey contact slides smoothly along the resistance wire of a Wheatstone bridge or potentiometer to find the null-deflection balance point during student-built bridge experiments

Frosted Glass Gas Jar Cover, 3 inch, 1.7mm Thick Graduations_Raised Compact metal mini boss headFrosted glass gas jar cover in 1. 7mm thick construction measures 3 inches for sealing gas jars during gas collection procedures.