4 PIECES 3mm CLEAR 3x 3 BULLSEYE GLASS SQUARES TILES 90 COE TESTED COMPATIBLE They are safe to use in microwave oven. Hoists, Pullers, & Winches; Manual Lever Chain Hoists; Jet® JLH-50-10 Mini Lever Hoist 1/2 Ton 10' Lift Bullseye Glass JOJOCY Dichroic Glass Fusible 4 Oz, Black & Clear Glass Sheets 90 Coe 90 Coe Dichroic You can make these glass pieces into various unique works according to your own creativity and imagination. JOJOCY Dichroic Glass Fusible 4 oz, Black & Clear Glass Sheets 90 coe Microwave Safe for Melt Art, Glass & Cups Secondary Processing, Handicrafts and ... Ships... HIGH QUALITY MATERIAL: The glass pieces in this set are all 90 coe material with very good fusing properties and stability. Package include: Dichroic Glass Fusible 4 oz(20-25 PCS). Large Quantity: the number of glass pieces in this kit is very large and very affordable. The colors of these glass pieces are very rich, including black, transparent, rainbow colors, etc. Specifications: Material: Glass ; Notes: Randomly selected from a large number of glass blocks. CONVENIENT AND EASY TO USE: The glass pieces in this set are very easy to use, you just need to heat them to a certain temperature to melt them into the desired shape. You can use these glasses in the secondary processing of glasses and other glassware, and the transformed glasses or other tableware can go directly into the microwave.