Instead of buying multiple kennels for your dog as it grows, buy 1 and the Dakota 283 Forever Insert Medium Kennel Divider with Dakota Guard. This adjustable kennel divider can be placed in multiple positions inside the crate using the crate's vent holes so that you can create the ideal space for your puppy. It has vent holes to improve airflow. Its molded plastic and full-length nylon support rods are built to last. Easily install the rod grommets to install the divider. This kennel divider is made with Dakota Guard, which provides protection against bacteria and is approved by the FDA and EPA. 24"L x 18"W. Weight: 7 lbs. Vent holes for airflow Can be placed in multiple positions inside the crate using the crate's vent holes Made of molded plastic with full-length nylon support rods Easy-to-install rod grommets Dakota Guard provide protection against bacteria Dakota Guard is FDA- and EPA-approved