Unique spooling design, 4 sizes hole fit on 0.8"/0.5"/ 0.4"/ 0.3" thick fishing rod
Pocket size for easy storage:160mm x 45mm, 6.3" x 1.7"(L x W), net weight: approx.56g
The inset spring for keep the spool in tight when you adding line one your reels
Actual test for bellow 500 yard fishing line, accommodating width no more than 3"
Made from highest quality weather resistant materials,long time to use