Anyone who keeps a rabbit indoors knows the daily job by heart: pull the tray out, scrape it, wash it, dry it, put it back. Lining the tray first turns all of that into lifting one bag out and dropping another one in. The same hygiene, in a fraction of the time, and without a wet tray propped against the kitchen wall waiting to dry off.

These are shaped to sit over a pull-out tray rather than being a bin liner pressed into service, so they drop into the corners instead of bunching up and letting droppings slide underneath. The material is leak-resistant, which is really the point of the exercise. Urine is what soaks into a plastic tray, stains it and gives a cage its permanent smell, and a tray that never gets wet never develops one.

• Fitted liners for pull-out cage and crate trays
• Leak-resistant material protecting the tray beneath
• Lift, tie and replace rather than scrub and soak
• Suits rabbit cages, small-pet hutches and dog crates
• Helps contain odour between full cleans
• Keeps trays from staining and wearing out

On fit, and on chewers. And rabbits and guinea pigs chew plastic, so if yours can reach the liner through the bars or over the tray lip, this is not the right answer for that cage.

Who it's for: Rabbit, guinea pig and small-pet keepers, and anyone crate-training a dog, who cleans a tray daily.