Roof Gutter Guard Filters, Expand Aluminum Filter Strainer, Anti - Blocking. Features: 1. GUTTER CLEANING TOOL: The Strainer Prevents Leaves, Seeds and Other Debris Clogging Gutter Downspout, Keeps the Water Flow Free. You're Still Going to Occasionally Clean out the Debris Calculated Around the Strainer, Much Easier to Clear the Downspout Inside. 2. Product Use: Suitable for Outdoor, Outdoor, Rooftop Terrace and Other Ground Water Demand, to Prevent the Blockage of Flowers, Leaves and Other Debris. 3. BUILT TO LAST: Which Provides Excellent Corrosion and Oxidation Resistance. It's Easy to Wash Away Residues, Keep Shinning After a Long Use. 4. EASY TO INSTALL: Measure the Inner Size of Downspout, No Tools Required, Simply Push Them into Holes. Scope of Application: Rooftop / Balcony / Outdoor / Garden/Ditch Specifications: Function: Large Displacement to Prevent Blockage Material: Aluminum Size: Diameter 7.6cm Package Contents: 3 X Drain Pipe Filter Cap . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.