Many uses for these split rings from fishing, hobbies, jewelry making, pet collars, key rings, home projects, arts and crafts, wind chimes, dream catchers, and so many other uses I have yet think of. Stainless steel so they will last a long time whether you use them or not right away or inside or outside as they will not rust before you need them or after they are in use. These need split ring pliers for use they are quite strong and (not included).  Good luck good fishing and tight lines always!    <:)))))><