Solar Mini Calculator Ruler – Eco-Friendly Office Tool

Stay productive without batteries. This innovative solar-powered calculator combines essential office functions in one ultra-thin, portable device.

• Solar-powered design eliminates battery replacement costs and environmental waste
• Integrated ruler and magnifier provide practical multi-functionality for desk and travel
• Ultra-thin, transparent design fits easily in bags, desks, or pockets
• Works indoors and outdoors with minimal light exposure

Perfect for professionals, students, and offices seeking sustainable, space-saving solutions. An ideal promotional gift for corporate events and employee benefits.