Pack of 10 Protective Collars for 250mL graduated cylinders. Hexagonal shape prevents an overturned cylinder from rolling off surface. Suitable for tubes with a diameter of 42mm (+/-0.25mm).
Pack of 10 Protective Collars for 250mL graduated cylinders. Hexagonal shape prevents an overturned cylinder from rolling off surface. Suitable for tubes with a diameter of 42mm (+/-0.25mm).