<b>It is not glass...it is MICHLEY Dishwasher Safe Series ! <br> <br> The design and materials meets durability and shatterproof !</b><br> <br> MICHLEY was created as a choice to help people prevent break their wine glasses. Upon its debut in 2008, <br> MICHLEY wine glasses are widely accepted by customers and respected, which based on the features of <br> shatterproof and dishwasher safe. It is shatterproof, reusable, and proudly made by US Tritan Plastic material<br> (It is a safety material of BPA & EA free).<br> <br> Perfect for outdoor & camping parties, patio or around the pool. Great to take as hostess gifts, <br> enjoy at picnics and on your boat. Glasses won't break when dropped leaving you to enjoy your event with friends. <br> Cocktails, wine, beer or juice. MICHLEY glasses are easy to hold and perfect for any drink you can think of!<br> <br> <b>Why do MICHLEY products look and perform like fine crystal?</b><br> All MICHLEY products are made from a flexible, BPA/BPS free polymer, which properly showcases all types of wines, <br> champagne, beers, cocktails, juice.and spirits.<br> <br> MICHLEY products are recyclable and totally reusable. It will not lose their luster <br> after repeated dishwashing -- It have looks that last. It is a clear plastic that retains its color and gloss <br> even after hundreds of dishwasher cycles.<br> <br> <b>Washing your MICHLEY products</b><br> <b>Hand washing</b><br> To keep your MICHLEY products lustrous, and to maintain their elegant shape, Washing it with a soft sponge, <br> then buff dry with a lint-free towel or paper cloth.<br> <br> <b>Dishwasher</b><br> It will not Warp or Crack in the Dishwasher,Preferably With a Non-Heated Cycle (Due To Temperature Fluctuations Of Dishwashers In That Cyclewhere, The Hot Water Temperature Can Reach Almost 200 F). <br> <br>