B00PQZTMR6 Leica 39103100 Leica Calibrated Loop, Platinum, 10 microliter, 4 mm ID, 25 mm Length

Make sure this fitsby entering your model number. Description: calibrated loop, platinum, 10 microliter, 4 mm id, 25 mm length Loop length (mm): 25 B and s wire gauge: 19 Loop inside diameter (mm): 4 Contained volume (microl): 10