Boat owners, RV enthusiasts, and anyone tired of spilled drinks - these silwy magnetic glasses are absolutely brilliant! The German-engineered design features perfectly integrated magnets in the base that securely attach to the included metal nano gel pads. Those gel pads stick to almost any sealed surface - boat decks, RV tables, poolside furniture - and can be removed and reused without leaving residue. The 0.25L crystal wine glasses feel premium in your hand with that fine crystal quality you'd expect from German craftsmanship. The magnetic hold is perfectly balanced - strong enough to prevent tipping in waves or bumpy rides, but easy to lift when you want a drink. No more clinking, slipping, or worst of all - broken glass! The set includes two glasses and two metallic gel coasters. Perfect for sailing, camping, caravan trips, or even just unstable outdoor furniture. The glasses are hand-wash only to maintain the magnetic integrity and crystal clarity. Seriously, if you've ever lost a drink to a sudden wave or bump, these magnetic glasses provide that peace of mind that your beverage will stay put until you're ready to enjoy it. They're one of those 'why didn't anyone think of this sooner' products that genuinely solve a common frustration.