The Stainless Steel set of 4 cups by Fox Run contains four high-quality kids cups of the same size - 8 oz. Made to last a lifetime, these steel sippy cups are perfect for daily use. They're great for smoothies, milk, juice, tea, ice cream and more. Our stainless steel drinking glasses feel completely natural to hold, they are unbreakable, durable, lightweight, safe, solid, healthy, enviro-friendly and easy to clean. This stainless steel cups set is a must-have kitchen accessory for the health conscious family! If you're looking for a UNIQUE & MULTIPURPOSE GIFT for your kids and family members, these kids cups are a gift they will LOVE & ENJOY USING! Product details: Premium 304,18/8 Stainless Steel, Brushed Finish with Rounded Edge. TOP RACK dishwasher safe. Food-Grade, BPA Free, No Toxins, Stackable, Eco-friendly and Reusable. Our cups are perfect for kids, toddlers and children. Get ready to enjoy the pure taste of your favorite drinks!