A PROFESSIONAL TOOL：Especially designed for students, teachers and also for professionals in various engineering and scientific industries. It is ideal for teaching and inspiring.
AN EXQUISITE DISPLAY：Great for display on desks and shelves. It is ideal for home, office or school class decoration. Perfect gift for students, teachers and professionals.
- Small: 6×4.5×0.8 inch
- Medium: 6.7×4.8×1 inch
- Large: 7.9×5×1 inch
- It is a handmade product, so some displacement may occur.
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