Support Ring, Steel Rod, Steel rod, zinc-plated support ring with attached boss head clamp and thumbscrew, Distance from support to center of ring is 4-1/2in for all sizes, Diameter: 5
Simple Atwood Machine, include Apparatus and 2 pulleys connected by a rod, 1.75inch plastic pulleys connected to a 3inch rod, Overall length is 8.25inch, Two pulleys are connected by a metal rod.
Clay Triangle, Perfect tool for suspending a crucible, The uniform clay tubes supports the crucible and the galvanized iron wire resists rusting, Size: 1-1/2in