3-Prong Double-Adjustable Universal Clamp with Vinyl Grip and Swivel Boss, 21mm Rod Item Type_Density Cubes & Cylinders Alternate seven-piece electrostatics kit for

Alternate seven-piece electrostatics kit for Van de Graaff and Wimshurst generators

and cytoplasm for classroom cell biology instruction

dimensioned to drop into the PH0652 optical bench for hands-on study of Malus's law and crossed-polaroid extinction

Wide-field 100mm reading magnifier with a 15cm focal length

Range 10Hz to 300Hz/sec

3-Prong Double-Adjustable Universal Clamp with Vinyl Grip and Swivel Boss, 21mm Rod Item Type_Density Cubes & Cylinders Alternate seven-piece electrostatics kit forThree prong double adjustable universal clamp with non slip vinyl grips and a swivel bosshead accepting rods up to 21 mm, securing large diameter glassware on retort stands.