Apa Cup: Our simple copper cup, “Apa” means water in the Ayurvedic tradition. Solid copper, durable cup. Our Sertodo Copper Apa cup was inspired by this ancient wisdom that drinking or storing water in copper vessels offers many benefits for health and longevity. As with all our copper goods, we have made this copper cup to last for generations. • 12 and 18 fluid ounce sizes • Solid copper from 100 percent recycled sources • Heavy gauge, pure copper from 100% recycled sources. • Our Hammer Polish beats shine, durability and unique beauty into every piece.