A more powerful shred 'n' vac garden vacuum, which also converts to blower. With a reduction ratio of 12 to 1 the echo es250es can reduce piles of leaves into a single bag. The 25.4cc engine produces a maximum air speed of 67 m sec, enough power for the most demanding jobs. It is easy to convert from blower to vacuum, with easy to change bayonet style fixings for the nozzles.featuresreduction the es 250es has a reduction ratio of 121, allowing large piles of leaves to be collected, mulched and compacted into a single bag.5 year domestic warranty echo power tools come with a 5 year domestic warranty or a 2 year professional warranty. Echo es easy starting the echo es easy starting system provides effortless and comfortable engine starting.specificationtype hand held engine 2 stroke power 25.4cc blowing speed 67 m sec collection yes mulch weight 4.8kg