Zak Designs Dot Dot 6-pack Reusable Drinking Straws, White & Black Reusable straws are colorful and fun; perfect for parties and entertaining Can be used as replacement straws for any insulated tumbler from Zak! design Each straw measures 9-inches long by .25-inches In diameter 100% BPA-free plastic; durable and reusable Dishwasher safe; do not microwave