BodyJ4You Organic Maple Wood Tunnels 00G-20mm (2 Pieces) Double Flared Wood Tunnel. Handmade Organic Blonde Maple Wood Tunnels. Pair of Blonde Maple Wood Tunnels 12mm (1/2 Inch) 2 Pieces from 00 Gauge - 20mm - Choose your Size Please be advised that there may be some variance in color and tone, due to the product being made from raw, natural materials.