Please note: the Stokke Babyset can only be used on European Stokke Tripp Trapp chairs produced after May 2003. The Stokke Tripp Trapp Babyset is designed to let children from 6-9 months up to 2-3 years sit on the Stokke Tripp Trapp. This will depend on how fast your child grows and when it can sit independently on the Stokke Tripp Trapp. The high back support and rail with an integrated crotch straps let your baby sit securely and comfortably at the dining table. The Stokke Tripp Trapp is easy to clean and is dishwasher proof. Stokke Tripp Trapp Babyset