Flesh Tunnel. Wood & Bone Organic Flesh Tunnel. Available in 6mm - 25mm gauges (US 2g - 1"). Saddle shape double flare flesh tunnel. Made from smooth polished bone inlaid into Nangka wood. Organic Flesh Tunnels are breathable and comfortable to wear. For use in stretched piercings such as the Stretched Earlobe. For help with sizing please read our sizing guide. For more info about Organic Body Jewellery please read our materials guide. Due to the organic material used there may be slight variations in colour and shape as each piece is unique. Unusual, Organic Flesh Tunnel.