This is the Dual Swivel Ball Link 4-40 by Dubro.
| FEATURES |
Plastic links for 4-40 sized rods
| INCLUDES |
Two Dual Ball Link 4-40 Swivels
Two brass tapered collars
Two 3x15mm cap head screws
Two 3mm nuts
| SPECIFICATIONS |
Length: 1.7″ (43mm)
Width: 0.39″ (10mm)
