Swiss Honeycomb Rig (Blue Cobalt)Swiss Honeycomb Rig (Blue Cobalt) The Swiss Honeycomb Rig (Blue Cobalt) is a collaboration between MiniNail and Purr Glass to make an Enail inspired Swiss Honeycomb Tube in a new striking blue colorway. Includes a large sturdy base for use with enails and a handcrafted honeycomb drum perc with 16 20 points of diffusion that provides superior function. A great addition to any collection. Made in California, USA. Boro Glass: Blue Cobalt (Blue Dichroic)