Features:These beads are intended for use in dry glass bead s, which are used for sterilizing small instruments in a variety of settings (veterinary or animal sciences, dental offices, tatoo parlors, nail salons, etc.).The dry glass beads are heated in such units to 250C.Inserting of clean instruments into the glass bead bed completes the process, destroying all microorganisms, including spores in less than 10 seconds.Worked with a supplier to deliver precision beads with size range 2.0 +/- 0.3 mm.Description:The borosilicate material is made of virgin silica sand and raw materia(not recycled crushed glass), without heavy metals.These glass bead offer high heat resistance of sudden cold and hot and high resistance of corrosion, and are suited for the daily heat cycling within glass bead s.Specifications:Weight: about120gColor: greenPackage Included:1 bag of BallNotes:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2. Please allow slight dimension difference due to different manual measurement.