Test Tube, PYREX* 3mL, 10x75mm, are made from special tubing to give the optimum wall thickness. They are well annealed, resistant to heat and chemically stable. These tubes have a white marking spot. Beaded rims are fire-polished.
Premium Clamp - Three Finger, Clamp constructed of powder coated high grade zinc alloy, 3 finger cork lined clamp attached to a stainless steel rod, Maximum clamp opening is 8.5 cm, Stainless Steel Connecting Rod 14cm, connecting rod 10 mm Diameter.