Arbormaster Deluxe Throw Line Cube. Professional foldable cube to store your throw line and throw bag. Features solid construction, inside and outside pockets to store throw bags and folds flat for easy storage. Simply launch your throw bag with the line still stored in the cube. After use, pull the line back into the cube and fold it away. Keeps your throw line separate and untangled from the rest of your equipment. Great value and only half the price of some European brands. Throw bag and line sold separately.