LEGO Pearl Light Gray Technic Beam 3.8 x 1 Beam with Click Rotation Ring Socket (41681)

LEGO Pearl Light Gray Technic Beam 3.8 x 1 Beam with Click Rotation Ring Socket has been used in at least 2 LEGO sets over the past 22 years, since it was first used in 2002. You can also find this part in at least 6 other colors. It has a design ID of 41681 which can usually be found molded into the bottom of the part.

• Click Rotation Hinge
• Liftarm