Steep it and sip it.This Tea Infuser fits perfectly in all Hydro Flaskmugs tumblers and most Cooler Cups so youcan steep it and sip it. With a capacity up to16 oz of tea leaves are treated to an optimalexpansion zone while the etched openingskeep fine leaves contained.Made with 18/8 pro-grade stainless steel for durability pure taste and no flavor transferEtched holes keep fine tea leaves containedDual-function lid keeps heat in when brewing and also serves as a drip traySilicone touchpoints remain cool to the touchLarge basket capacity to make 16 ounces of teawith room for optimal leaf expansionBPA-FreeDishwasher SafeCompatible with Hydro Flask mugs tumblers &Cooler Cups. Does not fit Slim Cooler Cup.