7 Pack 12 oz Reusable Color Changing Cups with Lids and Straws The color changing ability of the tumblers add interest to any event and are especially loved by kids. Even when used with warm drinks, or at room temperature, the distinctively different colors of the cups and lids make them easily identifiable. Worried about spills? No problem with the snap-on lids and stopper straws which help keep drink inside the cup where it is supposed to be. Made of BPA-free plastic, the spill-proof kids tumbler with straw is impact-, stain-, and odor-resistant. A COLOR-CHANGING CUPS SET Cup measures 5 1/10" high x 3 1/4" diameter at top x 2 1/10" diameter at base Straw measures 8" long COLOR CHANGING CUPS: Just add cold water or your favorite iced drinking in these plastic cold tumblers,you will see funny color-changing in these cold cups. TIPS: When the temperature is low and below 59°F, the cup itself will also change color (especially in winter) PERFECT FOR PERSONALIZED TUMBLERS GIFTS: Tumblers and color changing cups with lids and straws are the best gifts for your kids, families and friends. FOVERSATILE CUTE CUPS FOR KIDS AND ADULTS: With its slimline 2.1" grip at bottom, our cold tumbler cups are kid-friendly and feel fantastic to hold. They're light and sturdy enough for playtime and daily use. Drinking cups and lids are stackable to save space, so it's convenient to carry them everywhere when you go out to playOD-GRADE MATERIAL: As an alternative to disposable cups, Heincar reusable tumbler with lid are made from high-quality plastic, BPA-free, odor-resistant. Your children, family, friends and you can enjoy it with confidence and fashion EASY TO CARE AND CLEAN: With a cup cleaning brush and a straw wire brush, the straw cup will be quickly and easily cleaning. The cups, lids and straws are also top-shelf dishwasher safe, for days when you just don't have enough time VALUE GIFT & 7 COLORS BULK PACK: This set of 7 cups will make an exquisite and memorable gift for parties, birthday, weddings, engagement, Christmas or just to gift a loved one with a stunning set of drinkware