For best results, ensure the product dimensions are slightly smaller than the interior box size to allow for easy placement and removal, L*W*H: 6.5*4.1*3 inches. For sale is CASE ONLY !！！ (Scientific Calculator and other accessories are not included) Crafted from premium three-layer EVA material, this case is shockproof, waterproof, tear-resistant, and compact, ensuring worry-free portability while safeguarding your Gaming Scientific Calculator and Bits. Perfect Fit：Specifically designed for your Scientific Calculator, this tourmate Case offers a tailored fit to protect your precious Scientific Calculator from scratches and damage. (Case only) Protection：The PortableScientific Calculator Case is constructed from high-quality three-layer EVA hard material, featuring a rugged exterior with superior shockproof and waterproof properties. It provides comprehensive protection to extend the lifespan of your Scientific Calculator Convenient Storage：Includes an internal mesh pocket for storing accessories, with a soft rubber zipper head for easy access. Shields your Scientific Calculator from accidental damage and wear during transportation or carrying. Why Choose This Case：Whether traveling or storing your device, this EVA hard case delivers durable, reliable protection to keep your Scientific Calculator and Bits in optimal condition. Product Description:1.Tourmate hard case is made of sturdy and durable EVA material, which is waterproof, scratch-resistant, and shock-proof. 2.The inner with super-soft material provides double protection against drops, scratches, bumps, splash, and dust, which can maximize and protect your Texas Instruments TI-30X IIS 2-Line scientific calculator. 3. Our travel protective carrying storage case is a perfect fit for Texas Instruments TI-30X IIS 2-Line scientific calculator. 4. Smooth and rigid 360-degree zipper is easy to open and close. Tourmate hard shell with a handle strap allows you to easily carry it. The built-in mesh pocket can hold all accessories. 5. External dimensions:7.7*4.1*2.6 inches. For sale is CASE ONLY! (Texas Instruments TI-30X IIS 2-Line scientific calculator and other accessories are not included).