The Lawnboy 679977 grass bag is a white plastic bag designed for Lawn-Boy gas lawn mowers. It is compatible with Lawn-Boy mowers and comes as a single unit. This bag is specifically designed to collect grass clippings and prevent them from lodging in the mower, ensuring a clean and efficient cutting experience. Perfect for maintaining a neat and tidy lawn, this grass bag is a reliable and durable accessory for any Lawn-Boy mower.