Glass beads for use in removing investment from Crown & Bridge alloys and pressable ceramics. • Safe for divesting Pressable Ceramics, Press to zirconia, Press to Captek, Press to metal, Metal castings • Small particle size allows for smoother flow (50 microns) • Compatible with other micro blasters, recommended for use with Whip Mix Xcavator • User friendly packaging in convenient resealable container to reduce moisture with a study handle for carrying Not to be used as a metal conditioner (porcelain to metal).