From the product description, check product page for current description, price and availability:

• 100% dishwasher safe, BPA and BPS free, and shatterproof. These cups are hard to destroy and will give you a long life!
• Unlike solo cups, these are the first go-anywhere plastic beer cup set. They are perfect for hiking, fishing, boating, golfing, going to the pool, and more.
• These are great beer tasting glasses, as you can experience all the smells and flavors the brewers intended. You can’t get that from any other plastic cup on the market!
• Tall, straight top to leave room for a heady beer and the constrictions towards the bottom of the cup agitate and activate CO2 for the perfect sip, every time.
• We are so certain that you will love your new LAGER B Cups, that we offer a money back guarantee!

“We love our traditional German glassware from Spiegelau and other glass makers, and drinking beer from a proper glass is important to us. So in situations where glass just wouldn’t do, we were sick about having to drink beer from a red party cup. Rather than complain about it, we decided to do something about it! B Cups outdoor Lager cups are ONLY available from Fermented Reality! B Cups Lager cups are made from a rigid, shatterproof, fully transparent, BPA-free plastic. Your B Cups will have a long life and are even dishwasher safe! Even left out overnight, these cups come clean with a little dish soap and warm water and leave no residual stale beer smell. The B Cups line of cups are the first go-anywhere plastic beer cup set in the world! Beach, boat, camping, fishing, and more!”