The zipper case is a durable and shock-resistant carry case designed for graphing calculators. It features a secure zipper closure, a built-in mesh pocket on the lid to hold charging cables and accessories, and an elastic strap inside the main compartment to protect the calculator. The convenient wrist strap allows for easy transportation. Compatible with various models including: TI-83 Plus, TI-84 Plus, TI-84 Plus C Silver Edition, TI-84 Plus Color Edition, TI-89 Titanium, HP50G Graphing Calculators, and others. Made from EVA material with a soft knitted interior lining to safeguard your device. The exterior includes a zippered mesh pocket ideal for storing small accessories such as a mechanical pencil, eraser, ruler, and USB cable. Color: Black Material: EVA Size: 21.5 x 11.5 cm Package Contents: 1 x Graphing Calculator Hard Carrying Case Note: The actual product color may vary slightly due to lighting conditions and screen display differences. Measurement tolerance is +/- 1-3 cm.