Feature●[Material] - Carbon steel construction and Plastic Coated Jaw.●[Protection] - Plastic-lined jaws can well protect your glassware from scratching. The coating can bear 100℃ / 212℉ in a short time and we advise you to remove coating before extreme temperature uses.●[Adjustable] - 4 jaws lab clamp with a wing nut, holds irregular shapes easily, Opening Range: 15-86mm.●[Easy Use] - Screw adjustments, you can adjust the jaw width you want easily.●[Applications] - Great for holding the flask, glass tubing, burette, separating funnel and other glassware in laboratory, science classroom and home.[86mm][95mm]Description