Mouse Portable Shockproof Storage Bag For Logitech MX Master 3S Upgraded Version 1. For Logitech MX Master 3S upgraded mouse, this case is sturdy, shockproof and waterproof to protect your beloved wireless mouse. 2. Protect your mouse from harsh environments with this portable mouse case. You can travel with your mouse with confidence, it fits easily in your backpack, suitcase or anywhere, and you never have to worry about your mouse wireless being damaged. 3. The inside of the hard shell is designed with shock-proof particles, and the soft internal structure ensures the protection of the mouse. 4. The hard case is small but sturdy enough to keep your device safe and convenient. For a perfect fit, the classic zipper design makes it easy to open and close. 5. Hard EVA material, semi-waterproof, shockproof, durable, protect your mouse from impact and friction.