Uses: For scarifying breathable grass. It can also be used with the construction industry. 57mm length tips on each shoe that can be unscrewed. One size fits most, straps to ensure the fit. Airing your garden gives the essential roots of oxygen Easy to use garden aerator. Clean if necessary. Breathe some life into your lawn. Product parameters: Material: plastic Size: 30X13 CM Color: Black Package contents: 1 x Garden Lawn Shoe Aerator Only the above package, other products are not included. Note: shooting light and different screen may cause the item's color in the picture a little different from the real thing. The allowable measurement error is +/- 1-3 cm.