They are perfect for storing wire traces or fishing rigs, we use them ourselves for storing chod rigs and zig rigs. They are 45mm x 10mm.
Carp Fishing Rig Leader Wire Board 10pcs EVA Foam Spools for Line Storage
100Pcs EVA Foam Spools Fishing Winding Board Fishing Hook Line Tackle Foam
2X Pike/sea Fishing Trace Winding EVA Foam/spools XL Diameter 5.58 Inch (13.5cm)
