Yellow Head Grinder (50mm) Grinder by BDD Wholesale Sale! Login to view price. Options Single Box of 12 (Save $5) This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. 3 piece grinder Yellow head grinder Aluminum teeth Box of 12 or sold individually Qty available: 21 SKU: YEL-G-71-Single Tweet