I have to give credit where credit is due. I have been in business for 12 years now. I would have to say this is one of the best investments I have made. I bought it about 5-6 yrs ago. I would never down a convintenal plugger but there is no comparison. For those of you who dont know an aeravator has vibrating, rolling action and puts a massive whole in the ground about 2- 2 1/2 inches wide and 4-5" deep. It also loosens the dirt between the holes. It is coreless and doesnt matter how hard the ground is. I start reseeding in August. The teeth are made out of Titanium. I have included a few picts. I also just got my buddy to weld a bracket to put my spreader on. Man that works great for my seed. Let me know what you think.