The R4190.18 Lock Knob from Manfrotto is a replacement locking knob designed for use with select Manfrotto ball heads. This knob is included with compatible models and is sold here as a spare or replacement part.
Compatible Models
Packaging Info
Package Weight | 0.05 lb |
Box Dimensions (LxWxH) | 3.4 x 2.45 x 1.3" |