Manufactured with SEAL SHIELD™ Waterproof Technology (Patent Pending) and SILVER SEAL™ infused plastic for antimicrobial protection of the mouse surface. The SILVER STORM™Scroll Wheel Mouse is the original mouse that is washable and SILVER SEAL™ protected. SILVER SEAL™ technology protects the mouse between washings. The SILVER STORM™ Scroll Wheel mouse is fully submersible; DISHWASHER SAFE; has a 24K Gold-plated USB Connector to prevent corrosion and is manufactured to IP-68 standards.