LOVE: Kids and Moms 'love' our tumblers! Made from premium stainless steel 304, these cups are not only super easy to clean, but lots of fun with the bright/neutral colors. The extra bonus the lids, straws & sleeves can also be used on our 8oz glass mason jar drinking cups. Lids, straws & sleeves can also be used on our 8oz glass mason jar drinking cups. WHAT'S INCLUDED: This set includes 4 * 10oz Stainless Steel jars, 4 * silicone sleeves, 8 lids (4 straw lids + 4 air-tight storage lids), straw cleaning brush and 4 silicone straws with stoppers. Size of Jar: Height-5.5" Width-2.6" STRAW STOPPERS: All our cups have straws with stoppers. No more toddlers pulling out their straws from our tumbler cups! Our straws are also a little wider for those thicker smoothie drinks.