25.4 cc professional-grade 2-stroke engine Pleated paper main filter plus foam prefilter for performance in dusty conditions Secondary handle improves maneuverability and comfort Variable cruise control allows user to lock the throttle at a variety of settings Chrome-plated cylinder increases engine life Double-grid design reduces clogging and interference with user’s clothing Rubber grip increases comfort and reduces vibration Shoulder harness attachment points allows the use for shoulder harness (sold separately) support the weight of unit