1.: 100% Recycled Plastic Shoes. Each Shoe Has 13 X 45Mm Spikes At The Bottom. Simply Wear These Inflatable Shoes For A Walk In The Garden Or Yard. You Can Bring More Fresh And Healthy Air To The Lawn, Ideal For Small Lawns.^2.Improved Design: The New And Improved Buckle Is Easy To Buckle And Adjust. Each Shoe Comes With 2 Belts With Metal Buckles To Ensure The Strap Does Not Come Loose When In Use. It Can Be Tightly Tied To Your Shoes And Is Easy To Assemble.^3.Loose Soil: When Walking, Spikes Penetrate The Ground To Maximise Air Flow And Water Absorption. Help The Lawn Breathe, Promote Deep Root Growth And Rapid Growth Of Dense Green Lawns. You Can Also Do Other Work At The Same Time To Save Time.^4.Universal Size: One Size Is Suitable For Everyone, Suitable For All Shoes Or Boots. Whether Your Feet Are Big Or Small Or In Between, These Shoes Fit Perfectly.^5.Application: It Can Be Used For Lawn Aeration And Soil Loosening To Increase Oxygen Content In The Soil, Facilitate The Penetration Of Water, Fertiliser And Air Into The Grass Roots And Reduce Soil Compression.