I am selling this item because I purchased it, but it's too small for me and I haven't had a chance to use it. 【Size】 Top width 455mm x Bottom width 300mm x Height 350mm x Depth 140mm 【Suitable Children】 Can be used for children who can sit up firmly until they weigh 20kg. The shoulder straps are on both shoulders, providing a sense of stability when trying it on, and reducing the burden on the shoulders. The child could sit stably even without anything in the bag. Carry methods: Vertical carry, forward-facing carry, hip carry