The review title says it all... ideal for Kittens and Senior Cats - thank you for your service, Modkat!
XL Front Entry Liners - Type D (3-pack)
This box is the best thing I've found for my cat's "elevator butt" when he pees. He's a bigger fella, so he prefers the front entry over the top entry, but the litter tracking is still pretty low. Also, the liners are thick enough that his claws don't tear them while he's digging!
Even if items/liners are out of stock (I try to order a little in advance), delivery is fairly prompt and there’s great communication from Modkat! The liners are dependably resilient and reusable for a few uses if washed thoroughly between litter changes.
Modkat has made Kitty litter cleaning a breeze. The replacement liners snap off and on with little effort which makes changing the liners an easy task.