Straw Topper 40 oz Tumblers: Approx. 1” in diameter. This straw topper is made of silicone and it is reusable. Compatible with most 40 oz tumbler straws. Colors: black, blue, gray, light blue, lime green, navy, red or white. The price includes a one-color imprint in one location. Imprint area is ¾” diameter.