Well....then this is what you want to get:
We recently bought one of these and it's such a workout! We have tried about every eco friendly option for lawn mowers and so far this one is the best. We have gone through 2 electric mowers (one that you plug in and one that has batteries) and both ended up dying on us. We have also tried another type of push mower that just didn't end up working out. But the one we have now is much sturdier and it's 20 inches across so it's bigger like a gas powered mower. Our yard is big....about 1/4 of an acre. It takes about 2-2 1/2 hours to mow. I think that's some serious calorie burning.