The Casio FX-991ES / FX-991-ES-PLUS Calculator is a handheld engineering scientific calculator made of plastic, powered by a lithium ion battery and solar energy. It weighs 105g and has dimensions of 8 x 16 4 x 1 22 cm. The silver calculator, manufactured by Casio, is designed for office use and comes with one lithium ion battery included. With its compact size and reliable power source, this calculator is a convenient tool for various office tasks requiring accurate calculations.
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