Product Description: 1. Product name: Student scale 2. Product size: One product size 19*2.2 cm (7.5*0.87in) 3. Product style: scale 4. Product color: orange, sky blue, yellow, green, pink 5. Material: silicone Product features: 1. This colorful learning scale ruler bracelet is a must for students, easy to carry and use anytime and anywhere. 2. The specially designed patting ring function can roll up the ruler by tapping, which is convenient for storage and does not take up extra space. 3. A variety of bright colors are used on the scale ruler, which makes learning more interesting and convenient to distinguish different scales. 4. Designed as a wristband, easy to wear on the wrist and access at any time, saving the trouble of finding a ruler. 5. Made of silicone material, soft and comfortable, easy to clean, safe and environmentally friendly, not easy to damage. It is a good helper in students' study and life. Attention: 1. As we all know, different computers display different colors, and the real color may be slightly different from the following picture. 2. Due to manual measurement, the size may have an error of several centimeters The package contains: 1 pc scale