The pellets special form stops them from sticking to a cats fur and paws, significantly reducing the problem of litter being accidentally carried out of the tray.Cats Best Smart Pellets also use the natural power of refined active wood fibres, which effectively absorb liquids and odours - up to seven times their own volume - and trap them deep inside. This neutralises odours so effectively that the cat litter can remain in the litter tray for up to seven weeks. Cats Best Smart Pellets function best when you regularly dispose of the solid excretions and clumps that form after the cat has used the litter tray  “ using an original Cats Best cat litter shovel, which contains just the right hole spacing for the pellet size. This saves time and costs and ensures the type of hygiene and comfort that cats prefer. Like all Cats Best products, Cats Best Smart Pellets are made exclusively from renewable raw materials, which means they are both sustainable and biodegradable.