This Texas Instruments TI-30X IIB scientific calculator is a powerful tool for all your calculations. With its regular key size and pocket size, it is easy to carry anywhere you go. The calculator has a regular display size and runs on solar power, making it cost-effective and eco-friendly. It is a programmable calculator that comes with a cover to protect it from scratches and dust. The calculator is designed for business and industrial use, making it perfect for office equipment. The brand is trusted by many in the industry, and this model, in particular, is well-known for its quality and precision.