●Product Contents: Yellow Little Devil - 1 piece; Size: 15.7 x 10.6 x 1.0 inches (40 x 27 x 2.5 cm); Suitable for ages 9 months to 12 years old ●Comfortable and Convenient: Made of 100% wear-resistant oxford cotton material that is safe and harmless, so babies can use it with confidence. Unique breathable layer design provides your baby with a dry and comfortable carrying experience, dissipates heat quickly, keeping you cool in summer. The buckle can be adjusted according to your needs, ensuring a comfortable wearing experience ●【SAFE OUT】 Whether you are riding a bicycle or electric bike, our connecting belt prevents kids from falling over while riding and provides a safe riding experience ●Multi-functional: The backpack bag can also be used to store babys small items, train childrens self-management ability and develop their life habits ●【Excellent Service】1. If you have any doubts about our products or quality problems, please feel free to contact us. We will respond quickly. 2. Our shop is a supplier, we can provide bulk purchase and customization services. We are looking forward to your inquiry