Billy Goat KV650SPH Lawn and Litter Vacuum, 187 cc Honda, Self Propelled Large 5-blade impeller with serrated edges to maximize suction and debris reduction Variable height adjustment for hard surface or turf work Breathable hard bottom mesh turf bag with an integral dust cover loads from the bottom Bag zippers have been eliminated in favor of simple to use marine style clasps that open and close easily when dumping debris Self propelled