Blackcell 2x New Cute Anti-dust Silicone Glass Cup Cover Coffee Mug Suction Seal Lid Cap (2pcs) Material:food-grade silicone, safe and non-toxic. Becaues the pattern of cup cover are not same, size may be a little different Style: As show the pictures Package included: 2 x cup cover (2 sent at random) Size: About 11cm/4.33"(diameter of cup cover)