E-Tree Lawn Spike Aerator Shoes / Sandals British designed and manufactured for maximum aeration Patented Heavy Duty Unbreakable SuperTough Nylon Spikes for Ever Lasting Use, Green BRITISH DESIGNED AND MADE, Tough and easy to use garden aerating shoes with heel support. No self assembly of spikes required. Spikes are fully molded of SuperTough Nylon onto the shoe base. Premium quality Velcro straps for a secure comfortable fitting. Heel to toe 29cm / 11.5 inches. Widest point 13cm / 5 inches. Spikes 40mm / 1.5 inches. People with smaller feet may want to wear boots. Helps grassroots. Increases water and nutrients penetration. Will not rust. 13 specially designed spikes per shoe produce a bigger hole than traditional nails. Please read product reviews of delighted customers. This product is dispatched in manufacturer's box. Please consider adding gift wrapping if it is for a present.