This bottom-installed hot tub cover lifter is made of high-quality rust-resistant aluminum alloy, ensuring its stability and durability in moist bathroom environments over long periods. With this, opening, storing, and closing your bathtub cover becomes a breeze for one person, freeing you from heavy lifting and space constraints! | Vevor | | Hot Tub Cover Lift, Spa Cover Lift, Height 31.5" | 41.3" Width 53" | 92.5" Adjustable, Installed at the Bottom | Black | Best Buy