The 25cc Challenge petrol grass trimmer gives you a cutting width of 40cm and is a must have for any large garden. This 2 stroke Petrol Grass trimmer has auto choke technology which helps easy starting from cold and restarting. The trimmer line is easily lengthened by a little bump on a solid floor. This Challenge 25cc petrol grass trimmer is lightweight, has low vibration and is very well balanced with a soft grip handle design, making it comfortable, easy to use and compact to store. Easy start on engine. Detachable shaft for easy storage. Model number: yt9231a. Features: 750 watts. 2 stroke 25cc engine. Cutting width 40cm. Manual feed - you have to pull more line out yourself. Bump feed - requires you to tap the head on the ground to release more line. Dual line feed - ideal for overgrown areas. Rotating handle. Safety guard . Anti vibration system - minimises vibrations allowing you to work more efficiently. General information: Weight 5.5kg.