Arke 2 is our updated formula that increased the silver and improved rod quality. Arke 2 is a transparent cobalt luster color that develops a variety of exterior metallic finishes and holds it’s luster under a clear encasement. It’s the lightest of our three cobalt silver glasses; Arke 2, Triton and Iris. Variations in flame chemistry, exposure time and temperature alter the color of the exterior luster. Our second quality rods are less than perfect in shape. They may be too large, too small, too short, chipped, twisted or have an inclusion. They have all passed both our compatibility test and our color test, just not our pretty rod test. Add to WishlistRemove from Wishlist Add to Wishlist