SWELL. 13712-A21-74740. AZURITE MARBLE SLIM 12OZ DRINK CHILLER. DARK BLUE. Azurite Marble highlights the deep blues and variegated bands of the lustrous azurite stone. Features a high-gloss finish. S well Drink Chillers feature Therma-S well Technology and triple-layered vacuum-insulated construction designed to keep beverages cold for up to 6 hours. Simply slide your drink in and start sipping. Made from 18 8 food-grade stainless steel with superior construction.