Super CUTE cylindrical, capsule-like glass cup Perfect for Baby Chinos, Piccolos, Espressos, Kids Milkshakes etc. Fits standard drink sizes up to 6-ounces or 177.441 ml if you wanna get specific. “Reverse Force” lid is just a fancy way to say we engineered a very cool lid that actually stays on, we know, it stays on #amensister! Made of Borosilicate Glass which is said to be lighter and stronger than ordinary glass but that doesn’t mean they won’t break, our cups are made of glass so you need to treat them like glass. The silicone base comes all the way up the sides on this cup to meet the silicone lid making the cup fully enclosed so no glass is exposed. The silicone skin makes the cup non-slip, grippy for little hands and super comfortable to carry #nomoreburningfingers We’re Australian and we designed it here.