• Bag with 40 DualFly blades of 2.8 mm designed for the FlashCutter Qfc10 head • Blades with special three-part design: fixing eyelet that allows 270° flagging, flexible area that prevents breakage due to fatigue, and cutting area with oval section that increases cutting effectiveness and efficiency by 50% compared to classic round line • Offers lower rotational resistance, which reduces fuel consumption and extends the machine's service life • Suitable for universal cutting on all types of grass and light cleaning tasks • Includes 4 blades specially indicated for weeds, edges, sidewalks, and cobblestone pavements • Recommended for engines of 30cc or higher • Allows blade replacement in less than 10 seconds • Patented system for greater safety and efficiency