Protect your vision while enhancing your learning experience with the Myopia Prevention Ruler with Wave Special Line for Primary and Secondary School Students 15cm20cm Multifunctional Plastic Transparent Ruler. This innovative ruler features a wave-shaped line that reduces eye strain, making it ideal for long study sessions.
Available in 15cm and 20cm sizes, it's a versatile tool for students of all ages. The transparent design allows for clear visibility, ensuring accurate measurements every time. Prioritize your eye health and academic success with this multifunctional ruler.