VEVOR BH-001 Manual De Instrucciones página 10

As shown in the figure, install the hook
NOTE:（Only available on models with internal crossbar and comes with
hooks）
Pull out the active plug, as shown
Before the exchange
After the swap
The single-door model provides left and right interchangeable functions,
which is convenient for users when there is limited installation space to
open the door or for users who are left- or right-handed.
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