The 18946 Boom Arm Holder from K&M is a versatile extension system that attaches to the 18940 or 18990 keyboard stands. The two-piece telescopic arm has an eight-degree height adjustment, and an all-metal locking system to ensure a fixed position. The arm is fully-collapsible with the keyboard stand.
| Length | 16.7 - 28.5" (425 - 725mm) |
| Height | 24.8" (630mm) |
| Weight | 2.9 lbs (1.3kg) |