I'm going to start off by saying that the reason why this wine glass is shatterproof is because the cup is made of polycarbonate. This is a plastic like material and is BPA free so you can feel safe while using this product. I LOVE how small and compact this cup gets. The magnet is on both sides of the cup so that they can be compact and the cup can stand without it coming apart. This comes with a really cool carrying pouch so you can keep the cup clean while you travel with them. This is a great cup for any events that you have outdoors so you can be care free with your wine glass. This cup can be washed in the dishwasher but TOP RACK ONLY!!!
Buy yours here today:
http://www.amazon.com/dp/B00S6HMPHA/ref=sr_ph?ie=UTF8&qid=1430876576&sr=1&keywords=wine+glass+magnetic
Buy yours here today:
http://www.amazon.com/dp/B00S6HMPHA/ref=sr_ph?ie=UTF8&qid=1430876576&sr=1&keywords=wine+glass+magnetic