The inner ring diameter of the product is 28mm. Please read the size information in Figure 3 carefully before purchasing and choose the floor drain anti-odor plug that suits you. Upgraded dual anti-odor function, the sewer pipe and sealing ring fit together fit tightly without leaving any gap.Plug and Play suitable for most piping installations.Automatically opens when draining, and automatically closes without drainage.Environmentally friendly silicone, soft, elastic, durable and wear-resistant aging.Product DescriptionDescriptionAre you looking for a creative and practical seal for your kitchen and bathroom Our production can meet all your requirements with durable and reliable material for long-lasting use. It is designed with bright colors and elastic material, durable and aging resistant.Features- Color: Orange.- Material: Silicone.- Size: 9.00X8.00X2.80cm/3.54X3.14X1.10".- Automatically open when draining and automatically close without drainage.- Improved double anti-odor function, the sewer pipe and sealing ring fit tightly without leaving any gap.- Variable diameter design, can be connected to the 24-32MM drain pipe.- Environmentally friendly silicone, soft, elastic, durable and aging resistant.- Plug and play suitable for most pipeline installations.- Color: Orange.- Size: 9x8cm.Content :1 x sealing ring IngredientsSilicone