Used once for a short time during an outing. The following is quoted from the website: ↓↓↓ A chair belt that can be easily attached to a chair or a mother's waist. A safety assist belt that can be attached to chairs in restaurants, park benches, or home chairs to prevent slipping. Made in Japan, it is designed to contribute to the safety and peace of mind of children. It is lightweight and compact, making it very convenient for outings. This product can be used from when the child can sit up unassisted to around 3 years old.