It’s a glass, oval tempered glass as you see

Xinxiang Pan Chao Instruments Co., Ltd. is a specialized in manufacturing Bongs, Bubblers, Smoking Rigs, Water Bong Pipe Rig, Chillums Pipe, Glass Blunts, One Hitters Smoking Pipe, Sherlocks Smoking Pipe, Specialty Smoking Pipes, Spoons Smoking Pipe, Steamrollers Smoking Pipe, Color Glass Tube and so on.