CHATTOOGA RIVER FLY SHOP LOGO- Fly Cups
This product has many names and many uses. You can never have too many pucks storage for all those small bits like flies, split shot, indicators, leaders, tippet rings. Also great to have around the tying table.
They have a long shelf life but are degraded by bacteria in soil. (ASTM 5511 testing shows full degradation in 241 days under landfill