Why are green and white together on BKP pickups?

[RosettaStoned]

not awesome in english,but i try my best. On the pic here, you can see that green and white are together with a plastic thing around it(cant find the wprd for it in english). But in the schematic i got, i need to solder them to the pots. So i need to remove it?  here my schematichttps://bareknucklepickups.co.uk/main/downloads/schematics/general/humbuckers/2_hum__2_vol__1push_pull_tone_coilsplit__3_way_blade_switch.pdf

[Dave Sloven]

If your set-up requires you to use the white and green (e.g., for a coil split) then you have to remove that black plastic, which simply covers the wire ends like tape to protect/insulate them if unused.