Made of PP, the sipper dome lids are studier and more heat resistant than PS lids. They are easy-to-use, and also more eco-friendly and leaving a smaller carbon footprint. Will fit on hot cups from 10 oz. to 24 oz. Our curves are our trademark. Look for our curves to know it’s a Lollicup! Specifications: Color: White Diameter: 90mm Material: PP - Polypropylene Available in: Black and White Units Sold By: Case 1,000 lids (50 pcs per sleeve / 20 sleeve per case) Matching Cups:  10oz: C-K510, C-K510W, C-KRC510, C-WIC510K, C-WIC510W and C-KIC510W 12oz: C-K512,  C-K512W, C-KIC512W, C-KRC512, and C-KRC512B 16oz: C-K516, C-K516W, C-KIC516W, C-KRC516, and C-KRC516B 20oz: C-K520,  C-K520W,  C-KIC520W, C-KRC520, and C-KRC520B 24oz: C-K524 and C-K524W Shop All Karat Products