The ignition switch key for HiSUN MASSIMO YS TSC MSU 500 is a replacement part made by the brand MASIMA. Specifically designed for the HS500UTV model, this ignition switch is crafted from durable materials such as HS500UTV-4. Manufactured in China, this key ensures proper function and security for your lawn mower, making it an essential accessory for maintaining your yard and garden equipment.