Lid can come apart for easy cleaning. 18-8 Stainless Steel dual wall, Copper lined vacuum insulation Patented designed lid Fits in corporate and personal coffee machines Features lip and finger grooves that allow you to position the drinking spout without even looking. Vacuum insulation provides optimum heat retention at least 6X longer. Includes a leak proof screw on lid with a visual open/close push button locking closure. Made of FDA compliant materials. Complies with FDA. 2.875" D x 2.875" W x 7.25" H