Safe Material: TPR soft rubber, not easy to damage, can be reused for many years. Size: about 5.3 x 5.3cmUnique design: No matter how much water, it can be discharged quickly, draining quickly, no water accumulation. Self-cleaning by rotation, keep clean at all times.Usage: This type of floor drain can be used for about 35-37mm, and is suitable for 99% of the diameter of sewers For example, kitchen sinks , bathroom sinks, toilet floor drains, these places can be used. It can easily solve the problem of sewer insects and eliminate peculiar smell.Closed Isolation Technology: Since the sewer is connected to the underground septic tank, sewage or other air can enter the room through the odor exhaust pipe. Every family needs a high quality floor drain core to prevent foreign objects from escaping.Easy to use: Open the package and use, just insert the product directly into the end of the sewer. When the filter element needs to be cleaned, it can be directly removed from the drain through the handle. Features: 1. Widely used in kitchens, bathrooms, garages, balconies, bathrooms, toilets, etc. Easy to install. 2. No matter how big the water, it can be discharged quickly. Rotating self-cleaning, keep clean at all times. 3. Seals the peculiar odor and peculiar smell of sewage gas. Prevents the drain from being poured into the room, leaking and overflowing. Features: Name: Floor Drain Inner Core. Material: TPR + ABS. Dimensions: approx. 5.3 x 5.3 cm. Contents: 1 internal floor drain. Note: Due to lighting effects and shooting angles, there may be some color difference between the product, please understand. Due to manual measurement, there is some error in the size of the product