The LUUUP litter tray Just lift, sift & you're done! To clean the litter box, just lift the top tray & the waste is separated from the clean litter. It's as easy as that. Say goodbye to scoops and liners! Very easy to use however my cat refused it because she is a diva and wanted her old covered litter box with a door ! Dimensions 15.4 x 20.2 x 5.2" . Yes, it fits large cats! It's non-stick & antimicrobial, making hygiene a priority & keeping your home odor-free. It's also made of durable, pet-safe materials