Effective Toilet Bowl Cleaner: Duck Fresh Discs is a powerful toilet cleaner that cleans, refreshes, and deodorises your toilet with every flush, making this bathroom cleaner a must Fresh Discs Formula: This disc cleaner leaves a flush-activated protective shield all around the bowl that helps repel stains as the ultimate stain remover, extending the clean for at least six weeks Fresh Marine Fragrance: Sometimes the bathroom has strong smells, but this bathroom cleaning toilet bowl freshener can take on tough odours, along with dirty stains on the rim and throughout the toilet bowl Easy-to-Use Toilet Cleaning Products: Align large button on gel holder with holes on dispenser handle and position the clear end against inside surface of bowl. Press and hold button until button clicks and pull dispenser straight back to leave gel disc and replace the cap Toilet Duck Cleaner Refills: After dispensing the last gel disc, remove the tube from the handle and keep it for toilet disc refills, which come in a variety of fragrances that clean and freshen with every flush