This versatile retort clamp is ideal for securely holding laboratory glassware such as test tubes, and other apparatus. The jaws open up to 90mm, accommodating a wide range of sizes. Made from 100% pure nickel alloy, it offers exceptional strength, durability, and resistance to corrosion. The cork-lined jaws provide a firm yet gentle grip, reducing the risk of shattering delicate glassware. A dependable choice for both educational and professional lab environments.