Features: 360 degree full reflection, visible at night, ensuring clear visibility for both vehicles and pedestrians in low light environment. Suitable for nighttime cycling, commuting, and other scenario, allowing children to travel safely in any lighting conditions. Lightweight and comfortable design, solve the problems of traditional seat belts being bulky, comfortable to wear without affecting riding. Split design, front back double purpose, quick to wear, solves the hassle of complex installation, and facilitates parents and children to operate on their own. It can use for long time outdoor activity, school commuting, family cycling and other scenario, ensuring that children can enjoy the fun of cycling while maintaining comfort. Specifications: Fabric: nylon, reflective fabric Practicality: Suitable for children's bike riding safety, enhancing visibility at night and in low light environment Use scenario: Suitable for use in various environment such as city street, parks, suburban roads, etc., ensuring safety of children's cycling Size: approx. 20cm/7.87inch(refer to pictures) for adult waist circumference: 98-150cm/38.58-59.06inch, for child waist circumference: 78-109cm/30.71-42.91inch Package Includes: 1 Piece Cycling Safety Belt note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.