General description The Pair of Lawn Ventilation Insoles are designed to improve soil quality and promote healthy lawn growth. These lawn aerator shoes feature sturdy iron spikes that penetrate compacted soil, allowing air, water, and nutrients to reach the root zone effectively. With adjustable straps for a secure fit, these insoles are suitable for all shoe sizes up to size 46. Technical specifications Condition: 100% Brand New Material: PP bottom sole, nylon webbing, iron spike with chrome plating Color: Green and Black Type: 3 straps, 4 straps (optional) Spike Quantity: 13 spikes per shoe, 26 spikes per pair Size: Approx. 30 x 13 cm / 11.81 x 5.12 in Weight: Approx. 767~775 g Installation These lawn aerating shoes are easy to wear. Simply slip them on and walk around your garden to aerate the soil. Usage Use the lawn aerator to: Open up hard soil and reduce thatch Improve the health of your lawn Facilitate the movement of water, air, and nutrients to the root zone Other information