Calculator

Designed by Authentics

With this credit card-sized solar calculator, there's no need to worry if your mental arithmetic isn't up to much: keep it handy in your wallet or purse, and just leave it in the sunlight to recharge it. (Comes complete with a black wallet.)

Product features

Technical info

• Weight: 0.02kg
• Height: 1mm
• Width: 85mm
• Depth: 55mm

Buying options

Calculator - Stainless steel £5.50

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