Fully Assembled Product: Save up to 30 minutes with straight-to-use lawn inflators. For best results, use them on moderately dry soil and boots. Try dressing and mowing the lawn while doing two tasks at the same time. 2 DURABLE METAL BUCKLES: With 2 zinc alloy buckles and adjustable shoulder straps, it fits snugly on the lawn and is easy to remove, so you don't have to worry about metal buckles or shoe damage. Deep Soil: Nails are 2.2 inches long and support quick and easy lawn ventilation to help absorb deep root moisture, grass nutrients and air for greener, healthier grass. EASY TO USE: The ergonomic design ensures the shoe stays firmly on your foot, and sharp nails make it easier to dig into the soil for effective ventilation. Sports and Garden Fun: In addition to aerating the lawn, this is a great workout for legs and thighs, and you can use it as a fun exercise in the yard. Material: PP Weight: 728.5g Dimensions: 30 x 13 x 5.7cm packing list: 1 pair of lawn aeration shoes 12 x laces 26 screws 1 wrench