15mm nib replacement for On The Run markers: .060, .160, .070, .170, .069, .071, .171. and .084 and .184 Flowpens.
Can also be used with the Molotow: 611EM, 620, 640, 411EM,420, 440, 627 and 427 paint markers, and Krink K-51 and list goes on!
Twin pack