Manfrotto New Style Shallow Throat Lock Knob - 6 pack

SKU: 002256
Part #: R190,05K
Part condition: Discontinued
Substitute part: R055,68

Description:
This part also fits: 190, 190B, 290, 290B, 3411

R denotes the old part with the deep throat and the K denotes the newer part with the shallow throat. This is that new part.