Down Stem w/ Holes (19mm/14mm) Glass Accessories by n/a Sale! Login to view price. Size 2.5" 3" 3.5" 4" This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Thick glass Holes at the bottom for airflow Qty available: 12 SKU: DSH-1914-4" Tweet