304 stainless steel spikes

available in 3 different sizes and sold in sets of 10:

tiny: 7.5mm x 3mm, Hole: 1.8~2mm  -  (19/64" x 1/8", Hole: 5/64")

small: 8.5mm x 6mm, Hole: ~2mm - (43/128" x 15/64", Hole: 5/64")

medium: 13.5mm x 7mm, Hole: ~2mm  -  (17/32" x 9/32", Hole: 5/64")

large: 18mm x 5mm, Hole: ~2mm  -  (91/128" x 25/128", Hole: 5/64")