Features easy-roll 4″” lockable ball-bearing fire drill casters and a full red metal brace that attaches to the entire length of the crib underside for complete support and durability. Fits Whitney Brothers infant size WB9500 series crib models only. 36 1/2″” Longx18″” Highx23″” deep. 26 lbs. Ships by ground from NH. Made in USA. GreenGuard Certified. Lifetime Warranty.