Maker Scope 10ozWith technology inspired by the lotus effect, we transform silicon dioxide, one of the most fundamental elements on the earth, into a flawless interior glass finish that keeps drinks pure. Scope top provides 360 degrees of perfect sipping at any temperature. Rotating outer ring adjusts to your preferred flow. Fits all Purist bottles. Unbreakable interior glass finish Double wall vacuum insulated Surgical grade stainless inner 12 hours hot 24 hours