General description 4pcs Plastic Floor Plate Rainwater Drainage Anti-blocking Balcony Rainwater Drain is designed to effectively prevent leaves, twigs, shavings, and debris from falling into the sewer. This product not only helps in maintaining clean drainage but also prevents pests and birds from nesting in roof drains and cavities. It aids in avoiding drain overflow due to excessive water accumulation and reduces mosquito breeding, ensuring a healthier environment. Technical specifications Material: Plastic Quantity: 4 pieces Usage Easy to press and install, allowing for DIY installation. Helps filter floating debris in the water. Prolongs the service life of the drain.