Note that the SL, ZL and L flex cables are for the LEFT joy-con. SR and ZR flex cables, and the R bumper module, are for the RIGHT joy-con. A 3 piece toolkit option is also available. This includes a 2.0 tri-wing screwdriver, to open the Switch/Joy-Con out case, a 1.5 size JIS screwdriver for internal screws, and a pair of tweezers to assist with slotting in/out the flex ribbon cable of the thumbstick.
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