Features: OOTDTYbull; A must-have for practical home furnishings: use our drainage trough protective cover to prevent dirt from leaves, debris, roof moss, branches and other dirt from clogging the drainage or rain trough, And at the same time prevent animals from climbing, thus saving time and money on repairs!bull; Materials: These drain filters are made of non-corrosive and waterproof aluminum, which is , waterproof and weatherproof and can be used for a long time. Easy to use: No additional tools are needed, just insert them into the bottom hole in your mouth and push them into the right position. Note: Be sure to wear gloves when using the filter, as sharp edges may cause scratches.bull; Expandable Strainers: These drain trough filters are very flexible and can be easily bent to fit the size of the drain trough. 3.5 inches (about 8.9 cm) and 6 inches (about 15.2 cm) in height is suitable for most 2-4 inches (about 5.1-10.2 cm) sinks.bull; The set includes: you will receive 8 drainage channel covers. Specification: Material: Aluminum Size: Approx.3.5x6inchPackage Included: 1 Protective NetNote: 1. Please allow 1-2mm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.