Hip Seat I haven't used it at all since I bought it. Free size / Unisex Recommended age: From when the baby can sit up unassisted to approximately 36 months old. Recommended weight limit: Up to 20kg. Waist: Approximately 70cm to 115cm. Washing Instructions: Hand wash recommended. For small stains, wipe with a wet towel or spot clean, and avoid frequent machine washing. (Please wash gently, as it may damage the fabric.) Do not soak in water for extended periods. Always remove the PP (expanded polypropylene) form from the hip seat, fasten the waist Velcro and buckle before washing. Dry in a well-ventilated shade, away from direct sunlight. It has been stored for a long time, so please refrain from purchasing if you are concerned about minor details.