The Tervis Tumbler 16oz Travel Lid with Slider in Navy Blue Lot Of 4 is a set of solid-colored round tumbler Lid's made of BPA-free plastic. These classic-style tumbler lids that are break and chip resistant, making them suitable for all occasions. The set includes four c lids, each featuring a slider for easy opening and closing. Perfect for adults, these tumbler Lid's are machine washable Made in the United States, these tumblers are a practical and stylish addition to any home or garden.