The Triple Notched Spike Industrial looks awesome in, you guessed it, industrial piercings! This item is sold by piece and is surgical steel made at 14 gauge (1.6mm) and 1 3/8 (35mm) long with external threading. The spikes are 8mm long and the jewelry is safe for initial piercings! It is hypoallergenic and ready to ship. Check out our other spike jewelry to pair with this industrial!