Made of glass with a neon gradient rainbow translucent finish. The pink and yellow color are uv reactive Recyclers keep the water moving through the tubes, which makes it both fun to watch and provides you a smoother smoking experience Made of durable borosilicate glass Choose from either a Bong or Rig. Bongs include a 14mm male bowl, rigs include a 14mm 90 degree male banger as pictured 9.5" tall Clean the inside like any other glass piece, such as isopropyl alcohol or 420 cleaner, clean exterior with mild soap Intended for tobacco use only