Efficient Spring Mechanism for Automatic Soil Removal: This yard aerator features an innovative two layer spring setup that automatically ejects dirt and debris from holes without manual . Sturdy Reinforced Steel Construction: Crafted from heavy duty thickened iron with industrial grade anti rust powder coating, this aerator supports full adult weight without bending or damage. Improved Secure Fastening structure: Designed with upgraded connectors and anti slip washers, this tool rest stable during use. 14 Robust Tines for Yards: 14 strategically positioned 2.3 inch hardened spikes loosen soil gently without disturbing the ground. Package includes: 1 x T-shaped handle and thickened connecting rod assembly 1 x 14-nails double spring center base 1 x installation package (including 6 high-strength almonds) 1 x special metal wrench 1 x professional protective gloves