Samson offers a selection of splicing fids for self-splicing of twisted or braided ropes. Just pick the size fids and the pusher you need for your lines, or purchase the kit which gives you everything you need to splice a wide variety of common sizes.

Kit includes these size fids: 1/4", 5/16", 3/8", 7/16" and 1/2", plus a small pusher for splicing rope 1/4" to 1/2" diameter. 

Includes directions for splicing double braid ropes. 

All metal construction will last forever.