The earthquake walk behind string mower, powered by a 160cc 4-cycle viper engine with, is the perfect all-terrain tool for making short work of your trimming and brush clearing tasks. The earthquake string mower is designed to help you go where mowers can not while eliminating the back strain associated with carrying heavy equipment all around the yard. Large diameter, extra wide wheels keep you coasting around your property over uneven terrain and through thick grass and weeds. An integrated clutch and hand bail system safely keeps the string mower motor running, but disengages and stops the trimmer head if you need to clear debris, eliminating the need to re-start your motor each time. When the job is complete, you simply wheel the unit back to the garage and fold down the handlebars for easier storage. This product is built to perform.