These thick wall tunnels are handcrafted from beautiful green aventurine stone. These double flare shaped tunnels are concave and sold in pairs. Available in sizes 9/16" (14mm) up to 1 & 1/2" (38mm), with unique color and pattern variations. Perfect for healed lobes and adding a touch of natural stone flair to your style. Can be worn with plug hoops! Make sure the plug hoops have a wide enough opening to accommodate the thick walls of these tunnels.