These gutter strainers are made of non- and waterproof Aluminum, which is not affected by weather and robust for long-term use. Suitable for outdoor, rooftop terrace and other ground water demand. Install Them In Seconds - Unlike other impractical gutter filters, the downpipe leaf guards can be installed in seconds without using any tools. You don't have to be an expert or call a professional. Simply push them into place and you're ! A Must-Have for Every Guttering System- By preventing leaf debris, twigs, roof moss and dirt from clogging your pipes, you can easily make sure that your guttering system stays in perfect condition for longer without the need for costly repairs and constant unclogging. You now make sure that your gutters and down pipes are protected from leaf debris, roof moss, twigs and dirt.8 for a set, enough for daily use. Colour:silver Material:Aluminum alloy Size:12 x 17cm Package Contents: 8 x Gutter Guards Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.