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1. Check if all components are complete.
2. Insert the screw posts through the caster wheels and fixed holes from outside to inside.
3. Place the screw nuts onto the posts and snap into the slots.
4. Tighten the screws while leaving a 4-6 mm gap to allow normal rotation of the wheels.

[Bishuiqing] FourWheel Omnidirectional Model Magnetic Upgrade
CNÂ¥289.80

Large Capacity + Bearing Stair Climber
CNÂ¥69.00

Upgraded aluminum alloy version + stainless steel climbing wheels
CNÂ¥159.00

[Can seat a person] stairclimbing model
CNÂ¥149.80