Manfrotto MF244ADPT38AR

3/8Anti–Rotation Adapter Is Compatible With The Following Friction Arms: 244mini Friction Arm, 244 Micro Friction Arm, 244 Micro Friction Arm With Anti-Rotation. The Adapter Can Be Replaced Using The Included Hex Key. The Anti-Rotation System Is Compatible With Manfrotto Products: 055 Series, 190 Series, And 386b-1 Nano Clamp.Features:- Anti-Rotation Attachment To Prevent Rotation Of Load- Compatible With Friction Arms 244micro, 244mini And 244microkit- Easy Mount Through The Hex Key Included- Also Compatible With 386b-1 Nano Clamp,055 &190 Series TripodsSpecifications:- Weight: 0.035 Kg