The EZ Window Mount Kitty Cat Sill features:

• 2 push n' turn suction cups & 2 giant push cups - easy to remove for cleaning, but super strong to keep your cat safe (each suction cup holds in excess of 100 lbs)
• folds up to allow normal use of window blinds, curtains, and shades
• removable, washable cover
• 1 year limited warranty by manufacturer

Dimensions: 12" L x 23" W