Product name:mushroom head guitar anti-slip backstrap spikes
Product colour: black
Product size: 15x15mm/0.59x0.59inch
Material: metal
Quantity: 5 pieces/complete set including 5 buckles, 5 fixing screws, 5 spacers.
Product use: Guitar, bass

All data are measured manually, please prevail in kind, if there is any error, please understand!