Inner Fine Mesh Net: Made of mesh netting to collect leaves, bugs, dirt and small debris. Large volume bag holds more debris at once. Outer Heavy Duty Net: Protective layer extends lifespan, shields inner net from damage and remains functional if inner net fails. Upgraded Front Lip: Extended circular arc shape improves bottom debris pickup performance. Aluminum Alloy Frame: Provides excellent strength and holds up to 17lbs of debris. Weight: 1.12 pounds.