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- Medium, Round Back (JM1/M2)
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- High, Round Back (JM2/M2)
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- Extra High, Round Back (JM3/M2)
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- High, Square Back (JM5/M2)
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- Extra High, Square Back (JM6/M2)
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- High, Arc Back (JM7/M2)
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- Mesh Back (JM8/M2)
Options
Mechanisms
/M3 – Tilt (Independent seat & back adjustment)
/M4 – Tilt+ (Independent seat & back adjustment)
/M5 – Synchro (Synchronised seat & back adjustment at 2:1 ratio)
Functions
/R – Ratchet back height adjustment (M2 or M3 only)
/CB – Chrome Base
/SS – Seat Slider
/IL – Inflatable Lumbar
Arms
/A – Fixed Ring Arms
/HA – Height Adjustable Arms
/FA – Folding & Height Adjustable Arms
/MFA – Multi-Functional Arms
Extensions
/DE – Draughtsman Extension
/DEC – Chrome Draughtsman Extension
Headrests
/AH – Upholstered Adjustable Headrest
Other
/AMC – Mesh Colour: Red, Green, White, Silver, Blue or Orange (JM8 only)
Dimensions
JM1
Seat Height 450-550mm
Seat Width: 500mm
Seat Depth: 480mm
Overall Height: 830mm
Overall Width: 500mm
Overall Depth: 640mm
JM2
Seat Height 450-550mm
Seat Width: 500mm
Seat Depth: 480mm
Overall Height: 940mm
Overall Width: 500mm
Overall Depth: 640mm
JM3
Seat Height 450-550mm
Seat Width: 500mm
Seat Depth: 480mm
Overall Height: 1025mm
Overall Width: 500mm
Overall Depth: 640mm
JM5
Seat Height 450-550mm
Seat Width: 500mm
Seat Depth: 480mm
Overall Height: 920mm
Overall Width: 500mm
Overall Depth: 640mm
JM6
Seat Height 450-550mm
Seat Width: 500mm
Seat Depth: 480mm
Overall Height: 1030mm
Overall Width: 500mm
Overall Depth: 640mm
JM7
Seat Height 450-550mm
Seat Width: 500mm
Seat Depth: 480mm
Overall Height: 960mm
Overall Width: 500mm
Overall Depth: 640mm
JM8
Seat Height 450-550mm
Seat Width: 500mm
Seat Depth: 480mm
Overall Height: 990mm
Overall Width: 500mm
Overall Depth: 640mm