It permanently gives the player a sixth accessory slot to use (while in an Expert Mode world). This effect does not stack and may only be used. I'll just need a bit more info (and some equipment that can give you those extra slots, ofc). If you don't want any item that gives extra accessory. Dec 15, @ am. Extra accessory mod soon. People on the terraria forums have a mod for to get 3 extra accessory slots.
Terraria extra accessory slots - mit
Changing DPI. More toolbar slots in Terraria Android