Turns your Tripp Trapp® Chair into a comfy High Chair Suitable from when your child can sit unaided (approx. 6 months) -Provides side and back support for your baby which allows them to develop the skill of sitting -Brings your child to the dinner table and closer to the family -Attaches easily to the chair, no tools required -Harness easy to buckle with two clicks, as well as unbuckle with a quick release button This baby set is intended for children able to sit up unaided and up to 3 years or a maximum weight of 15 kg/33lbs The 5-point harness is designed with function in mind and uses material that is both high-quality and comfortable. Buckle up in two clicks. Quick release button – takes less than a second to release. Harness Adjustment: Waist: 46-71 cm (18 - 27.9 in); Shoulder strap: 29-51 cm (11.5 - 20 in) Fits European version Tripp Trapp® chairs produced after June 2006. Purchased in 2025, but never used. This includes: Stokke® Harness² Baby Set Backrest Baby Set Rail This does NOT include extended gliders as shown in the online set, but those are not necessary for installation of this set.