Premium Clamp - Two Prong with Bosshead, Maximum clamp opening is 11 cm, Swivel between Clamp and Bosshead, Boss accommodates to 18 mm rod, High Strength Alloy Bosshead, Constructed of powder coated high grade zinc alloy
Premium Bosshead - Die Casted, Right angle Clamp Holder, Classic Die Cast Alloy, finished in non toxic powder coating, 2 Stainless Steel Thumb Screws, Able to hold rods up to 15 mm in diameter, Holds rods orthogonal (90 degrees) to one another
Premium Clamp - Three Prong with Bosshead, Vinyl Coated Extension Lab Clamp, 8.5 cm maximum clamp opening attached to High Strength Alloy swivel bosshead, Boss accommodates to 18 mm rod
Spectrum Discharge Tube, Mercury Gas to show spectral lines of pure substances. Tubes approximately 260mm long, central capillary portion approximately 3-1/2 to 4 (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps