Only for use by children who are able to hold their head upright unassisted (approximately 4 months of age) and weighing no more than 24 lbs (10.8 kg). Door frame clamp provides secure fit to doorways 3-6" thick with door trim at least 1/2 inch wide Adjustable straps allows you to accommodate a baby's changing height and weight ; Framed seat fully surrounds your child for optimal safety The fully enclosed springs on the baby door jumper prevents access to and dirt from collecting in the active spring Removable, washable seat pad easily disassembles for quick clean up in the washing machine The Exersaucer Doorway Jumper helps baby acheive 3 developmental milestones - gross motor skills, cause & effect, and balance & coordination. This doorway jumper stimulates baby through jumping fun. It provides entertainment and exercise for baby without taking up all your floor space. The framed seat fully surrounds the child providing comfort and the sturdy door-frame clamp provides a secure fit in most interior doorways. Parents can feel comfortable knowing their child is protected by a fully-enclosed spring that prevents the child from touching the spring. Because this doorway jumper is easily packed, it is also great to take on the road for playtime anywhere and it's easy to wipe clean when you're finished using it. Expanded assortment available online. This product is not available in our stores & may experience longer ship time. Please allow 10 to 14 days for this product to arrive.