Collapsible – The RNA Throwline Folding Cube folds into a small triangle for easy carrying to the job site. Secure tightly with velcro strap to keep everything secure. Durable – Constructed with heavy duty canvas material for long lasting use. It is light weight and easy to carry. Helps throw line remain tangle free and ready to use. Use interior pockets for weights, ropes or other accessories. Storage cube bag can also be folded with items inside. Cube storage bag measures 17″ in size. Easy To Use – Throwing line has never been easier! A foldable throw line bag is essential in carrying, positioning and using lines without tangles, twists and knots. Folding storage cube can be done in seconds for easy storing and transport.