Designed to fit in our EZ Whelp Fab System Whelping Box to prevent puppies from being crushed between mom and the sides of the box. Allows puppies to be rolled under the rails if mom rolls over and smashes against them. Should be removed as the puppies are big enough to move out from behind mom. Designed to fit the 3' x 3', 4' x 4', and 6' x 4' boxes. Can also be used in other brands and homemade whelping boxes of comparable dimensions.
NOT A STOCK ITEM. OVERSIZE.