Euler's formula: e∧(iπ)+1=0 is reputed to be God formula, full of infinite beauty. The beauty of mathematical abstraction is demonstrated through the curve image of the formula on the numerical axis.
The interior part is composed of 50+ layers of engraved paper. Double-sided glass transparent, Ultra thin glass, high transparent, and not easy to break, for protecting the safety of you and the people around you.
**SIZE：**(H x W x D) 12 cm x 12 cm x 3 cm
**MATERIALS：**Paper、Wood、Glass
**CARE INSTRUCTIONS：**
1. Wood products should be stored in a dry and well-ventilated place. A humid environment may lead to termite infestation.
2. Please use a dry and soft cloth for cleaning wood products.
3. This product is handmade, and so may not look exactly the same as the photo.
4. Please allow for some variation in color as displayed on different devices and screens. Actual colors may vary.
