Crystal CZ Stones Threaded Tunnel – 6 gauge to 1″- Price Per pair (2 tunnels). Super high polish. Hand Polished for a superior Shine. Get the look without the ridiculous Price. Gem cuts: Faceted – Cabochon These are hand polished steel Hand Polished Gem Eyelets. 316LVM Implant Grade Surgical Stainless Steel. Autoclave Sterilized for your safety.