This kit allows you to add an inline fuse to existing wiring or to new circuits with no need for messy splicing.The kit includes the weather tight sealed cap, the housing body with wire seal and two 12-10 gauge crimp on wire terminals.This handy fuse holder uses common ATC/ATO blade type fuses available in any parts store.This fuse holder is available as a complete kit or in individual parts if you need to service an existing fuse holder assembly. These parts are manufactured in the USA by Packard-Delphi, the same company that manufactures weather pack connectors. The caps proudly wear the Delphi name. Fuse and wiring not included.