The Bumbo floor seat is designed as a fixed seat, which means it does not have adjustable features for height or width. The primary aim of the design is to provide a safe, supportive seating option for infants who are beginning to sit up on their own, generally around the ages of three to twelve months. It is made from soft foam that gently hugs the child, allowing for comfort and support as they learn to sit. Parents should ensure that the seat fits their child properly, as safety is a top priority. When selecting a Bumbo seat, it is important to consider the size and weight limits specified by Bumbo to ensure it is appropriate for your child. Additional details on specifications can usually be found on the current web page for Bumbo products.