A HEALTHIER LOOKING LAWN - 2" inch steel spikes penetrate deep into the soil, providing the earth with the opportunity to absorb more oxygen and nutrients. What was once a patchy eyesore, will now be full, rich, and green. ONE SIZE FITS ALL - Every pair of aerator shoes comes with adjustable velcro straps for an undeniably snug fit, regardless of your shoe size. Both unisex and lightweight, these shoes make lawn maintenance a breeze. FASHION MEETS FUNCTION - Our grass spike shoes are designed to be both easy on the eyes and to use. The green and black colors allow them to effortlessly blend in with your lawn, neighbors will hardly notice you wearing them. DESIGNED TO PROTECT - grass aerator shoes have a non-slip sole and come with handy hook-and-loop straps which keep your feet securely locked in. Protecting you is our number one priority, second is a perfectly aerated lawn. READY TO USE - The lawn aeration shoes come ready to go right out of the box. Pre-assembled so you can simply strap them on and take a leisurely stroll across your lawn. Say goodbye to heavy and expensive lawn equipment.Specification: Shoe board size: 30X13CM Nail length 57mm M6 nut Gross weight: 980g Uses: used for lawn loosening and ventilation, and can also be used in the construction industry. Package includes: 4 shoelaces + 2 V-belts, 1 pack of screws (26 nails + 27 nuts + 1 wrench), 2 shoe boards, instruction sheet (English)