NewUSA LAB Heavy Duty Chain Clamp for lab standSpecifications:USA Lab Chain Clamp Holding Diameter 40-145mmCondition: 100% Brand New and High QualityMaterial: AlloyDiameter This Clamp Can Hold: 40-145mmRod Length:150mmRod Diameter: 9mmWeight: 300 g Package Content: 1 x Lab Chain Clamp Holding Diameter 40-145mmUse to Hold Test Tube, Flask, Condenser Tube and so on. To Secure Glassware and Laboratory Apparatuses. Use to Hold Test Tube, Flask, Condenser Tube and so on.Works Great: Holds Large Round or Irregular Shaped Objects Firmly.Large Holding Size: Can Hold Diameter 40-145mm.Easy to Use: Quick and Secure Slip-on Chain Connection with Large Easy-to-turn Adjusting Knob For Technical Support, Questions, or Other Issues Please Email or Call Us! USA Lab Equipment Livonia, MI 48150