Lee 38 Special Case Length Gauge is a precise, easy way to trim to length and square the case mouth. Used with the Cutter and Lock Stud or Zip Trim. Trim to length 1.135 to 1.155 inches. Size .380 Type Case Length Gauge w/Shell Holder Finish Silver Series with Shell Holder Weight 0.07 lbs Caliber 38 Special Function Measure Cases Includes Shell Holder Material Steel Quantity 2 Piece Media Type Brass Shell Compatible With Cutter/Lock Stud