Product Name: Lawn Spikes Used for loosening and ventilation of the lawn, and can also be used in the construction industry Size: shoe board size 30x13cm nail length 57mm M6 nut Material: high quality PP raw material The color green Net weight/single package size: 14cm x 5cm x 32cm 905g. Package: carton — including 6 laces, 1 set of screws (26 nails + 27 nuts + 1 key), 2 shoe boards, instruction sheet (English).