Costway SP37674 Manual Del Usuario página 12

(7)Pull the adjustable knob, lift the cushioned seat up to a suitable height, loosen the
adjustable knob, make the pin penetrate into the small hole of the seat, and then tighten
the knob. (Loosen the knob underneath the seat, you can move the seat back and forth,
and after adjusting to a comfortable position, tighten the knob.
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