Manfrotto 244N Variable Friction Magic Arm without Camera Bracket (Black)Articulated arms are a great accessory for any studio application.. Features as 143N, but a large locking knob takes the place of the cam-lever. Variable friction and locking of arm obtained by adjusting knob. Arm tube diameters: 20mm.; attachment: type 17; attachment 2: type 17; black color; load capacity: 6.61 lbs. material: aluminum; weight: 2.40 lbs.Manfrotto 143BKT Replacement Camera Bracket for Magic Arm (Black)Make your Manfrotto Magic arm more useable, replace that lost or broken camera bracket. With the camera mount you have great flexibility in positioning your camera. (Camera bracket only.) Color: black; aluminum material; plate type: fixed - with 1/4-20 screw; weight: 0.31 lbs