madesmart® Deluxe Undersink Storage System 4 "handy" Gillian 11 September 2017 Larger than I expected but ideal for storing all those bits you use to wash up. The base is big and doesn't stand on a "normal" window ledge without sticking out over the edge. My husband cut 2/3's of the back part of the base off and it doesn't topple over and fits far better. In my opinion the back part of the base is a waste of space . Otherwise a really useful bit of kitchen kit.