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Step 4 Step 7 Step 8
Step 9 Step 10
Step 5 Step 6
√
×
→
arched area
Push castor into base leg hole with both of your thumbs
The force of both thumbs focus
on the upper arched area (blue
dashed box).
DO NOT SPARE YOUR THUMB
FORCE ONTO THE LOWER
ARCHED AREA (red dashed
box).
. If jammed, pull out the castor, switch to other castors then push it into holes again.
Insert base caps and cylinder into base Arms to seat
screws M6X40MM*6pcs
washer M6X15MM*6pcs
Tilt control to seat
screws M6X55MM*4pcs
washer M8X17MM*4pcs
Backrest to seat
screws M8X20MM*3pcs
washer M8X17MM*3pcs
washer M8X13MM*3pcs
screws M6X20MM*2pcs
Follow the installation video on Amazon
FACEDOWN
FACEDOWN
4
FACEDOWN
（lay it on the corner
of a desk or on the
packing box）
Insert headrest into the connector
(on the top of backrest), then raise
headrest to its highest point; Screw
the connector. Adjust headrest height
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