Swivel Clamp Holder for 21mm Rods, Adjustable Tilt Glassware_Glass Sets & Apparatus 1 inches while the swivel

1 inches while the swivel boss head delivers 360-degree angular positioning and fits rods up to 18mm in diameter

and vertical tube for calorimetry and phase-change experiments

Physics-grade extension spring with a 3

5-inch inner ring for seating wire gauze and vessels during classroom heating

supplying the next step up from the 1-ohm value for low-resistance investigations of current-versus-voltage behavior

Swivel Clamp Holder for 21mm Rods, Adjustable Tilt Glassware_Glass Sets & Apparatus 1 inches while the swivelJumbo die cast swivel clamp holder accepting rods up to 21 mm, tilting clamps at any angle on retort stands during classroom demonstrations and benchtop work.