This New Stainless Steel Grip Was Designed To Be Compatible With All Cheyenne Hawk Needle Cartridges. The Outer Design Provides Ergonomic Comfort While The Fine Knurling Helps Prevent Slippage. Also Included With Each Grip Is Our Pro-Design Needle Bar Plunger, Additional Plungers Can Be Purchased On Our Site. Autoclaveable, Weight: (5.4Oz) Or (153 Grams)