Turn Your Cup Into A Spill-Proof Sippy Cup With Ease, Just By Using The Snug Spout Lid These 100% Silicone Lids Stretch Over Most Cup Sizes That Are 2. 5"-3. 75" In Diameter Includes 3 Lids With 1 Cup Holds 9 Oz The Cup Can Hold Up To 9 Oz Made From Bpa Or Pvc Free Materials, And Soft Durable Silicone That Is Tasteless, Making It Safe For The Baby.