3-in-1 10cm Solar Ruler Calculator Multifunctional Large Display Screen Mini Solar Card Ruler Calculator: Features: Material: Plastic;Size Details: 12.7cm x 4.3cm/5" x 1.69" (Approx.); This solar ruler calculator is mini and lightweight, which can be carried with you easily and conveniently. Very convenient, can save your time and improve work efficiency, convenient, practical, stylish, durable and cute,to bring surprises to the family. This solar ruler calculator also has the functions of magnifier, which is multifunctional and practical.This solar ruler calculator is suitable for student and school. Give your math- friend a unique gift that combines both scales and has a calculator with a large display for general purpose calculations. Product Description: Product name: Multifunctional ruler solar calculator Power Source：Solar Material：Plastic Package includes: 1x multifunctional ruler School Supplies:Mini Colorful Multifunctional Student 10CM Ruler Solar Calculator Angle Magnifier Gift Stationery Yellow Practicality:Stationery is mainly designed to facilitate people's learning, writing and recording, so practicality is its most basic characteristic Aesthetics:With the continuous improvement of people's concept of aesthetics, the aesthetics of stationery is also increasingly important, modern stationery to meet the practicality, but also pay attention to the appearance of the design and color collocation, in order to attract consumers Easy to Carry:Stationeries are usually lightweight and easy to carry, and can be used in different occasions, such as schools, offices, etc Diversity:The types of stationery is very rich, including pens, paper, notebooks, sticky notes, folders, etc., each kind of stationery has its own special purpose and characteristics, in different occasions can play different roles