Wholesale Downstems for bongs. Every shop needs to carry a variety of extra downstems at different sizes for their customers. Downstems are a common item to break, and are essential for good bong function. We provide bulk options on all sizes of downstems with classic slashes and also offer some bulk diffused downstem options for customers looking to upgrade their experience. If you need wholesale downstems for your counter top, try one of our bulk downstem displays!