Features: 1. Use Sewer Sealing Ring, Reject the smell and returns home with fresh air! 2. Silicone and pp material, corrosion resistance, not easy aging, strong, durable. 3. Keep out smell from entering places like sewers. Water drainage, no water completely closed. And effectively reverse osmosis. 4. Easy to install and use, very convenient. Suitable for 40-50mm floor drain aperture. 5. Suitable for floor drains in toilets, bathroom, kitchen, washing machines, drain tanks, etc. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow slight deviation due to manual measurement. Specification: Type: floor drain core set Material: silicone+pp Color: as picture shows Size: as picture shows Applicable floor drain: aperture 40-50mm Style: 2pcs/set: 1 floor drain core + 1 sealing Ring 3pcs/set: 1 decorative cover + 1 floor drain core + 1 sealing Ring Include: 1 set(2pcs/set)/1 set(3pcs/set)/2 set(2pcs/set)/2 set(3pcs/set)/3 set(2pcs/set)/3 set(3pcs/set) optional includes: Choice 1: 1 x floor drain core 1 x sealing Ring Choice 2: 2 x floor drain core 2 x sealing Ring Choice 3: 3 x floor drain core 3 x sealing Ring Choice 4: 1 x decorative cover 1 x floor drain core 1 x sealing Ring Choice 5: 2 x decorative cover 2 x floor drain core 2 x sealing Ring Choice 6: 3 x decorative cover 3 x floor drain core 3 x sealing Ring