Use Polylactic acid materials, this toilet cleaner holder resists deformation and maintains great in humid bathroom environment The toilet tanks cleaner hanging bracket designed to fit standard height toilet tanks while keeping cleaning tablets neatly organized Simply hook the bracket onto your toilet tanks, simple installation The simple design allows for quick setup and immediate use Keeps cleaning tablets efficient use and while clutter, creating a more efficient and tidy bathroom space The cleaner holder works seamlessly with cleaning tablets and fits most standard toilet tanks with proper water line