BodyJ4You Rainbow Colors Flag Screw Fit Tunnel 0 Gauge - 14mm - 1 Pair Steel Rainbow Colors Flag Screw Fit Tunnels. 316L Surgical Steel Screw Fit Hollow Tunnel For Double Flared. Highest Quality, 316 L Surgical Stainless Steel. You will receive 2 Pair of Steel Screw Fit Rainbow Flag Plugs (2 Pieces) of the size you select. 2 Pieces from 0 Gauge - 14mm - Choose your Size