Click to enlargeAblenet Friction Knob UMS with Super Clamp

This strong, reliable mounting system is designed for fast, easy and secure placement of any switch. The arm extends to 20.5-in/52-cm and clamps onto most flat or tubular surfaces, such as tabletops and wheelchairs.


  • Utilizes Super Clamp for mounting to a table, chair, bed, or just about any other surface
  • Does not include mounting plate

    Mounting Plate Options:

  • Adjustable iPad 9.7/10.5 Cradle
  • Adjustable iPad Pro 12.9 Cradle
  • Universal Mounting Plate
  • Wobble Switch Mounting Plate
  • Micro Light Mounting Plate


  • Mounted Products Max Weight: 5-lb/2.3-kg
  • Mounting Surfaces: Table Edge (2-in max), Tubing
  • Articulation (Positional Range): Medium
  • Positional Rigidity (Strength): Medium
  • Range/Reach: 20.5-in/52-cm
  • Maintenance Period Adjustment: No
  • Base Connection Method: Super Clamp
  • Weight: 2.9-lb/1.3-kg
  • Cord Management: Yes

    Part# 100USMSFK

    Availability: Usually ships in 2-3 business days

    Ablenet Friction Knob UMS with Super Clamp
    100USMSFKRegular price: $400.00Ergoguys price: $354.95
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