This is the perfect "rock" tumbler for anyone who loves geology puns, crystals or gems, beautiful colors, and hand drawn crystals.
Minimize your plastic footprint with style. This tumbler is the best companion on road trips – it fits perfectly into car cup holders. The rubber gasket makes it spill-resistant on bumpier roads, and the double-wall insulation makes sure drinks stay at the right temperature until the next pit stop
.: Double wall insulation .: Fits perfectly in car cup holder .: Material: Stainless steel .: Spill-resistant sliding lid with a rubber gasket to prevent leaks
