PieceMaker silicone downstems measure 6" long and feature multi-hole diffusion and come with a stainless steel bowl insert and a silicone cap. These downstems are NOT compatible with PieceMaker Kolt, Kermit, and Kali silicone water pipes and work with both silicone and glass bongs requiring a 6" downstem. PieceMaker downstems are available in a variety of bright assorted colours and are made from food-grade, BPA-free silicone, and are the perfect way to add a pop of colour to an old piece, and are great for travel as they are flexible and bendable.