COMPATIBLE & SIZE - Fit Western Digital WD My Passport | WD Elements | WD My Passport Ultr | Seagate Backup Plus Slim Expansion | Toshiba Canvio Basics | 1TB 2TB 3TB 4TB 5TB Universal case for most hard drive and game drive hard drive. Exterior: 5.6" x 4.4" x 1.5" inchs & Interior: 4.8" x 3.5" x 1.0" inchs. | WATER REPELLENT - Made of waterproof PU Material, which obstructs water and vapor effectively. Don't worry about getting your hard drive and accessories wet from splashing water or rain. | SHOCKPROOF - Extra soft, The anti-static, shock absorbing, the product can effectively absorb impacts. Reduce damages caused by accidentally bumping, protects your hard drive from bumps, scratches, and dents. | ENOUGH SPACE - Enough space to store USB cables, charge, also boasts extra plastic slots to place SD cards memory cards or other smaller but essential widgets. Devices will be fastened with the inside security strap that can hold devices tightly. | EASY TO CARRY - Hard texture. Perfect with lanyard and metal hook, you can just carrying the lanyard or use the metal hook matches lanyard fixed case on your backpack, makes it easy to carry for travelling.