Black, white or red rectangular-shaped resin pieces screw into your cable ends to hold a current project while using the tips for another project. White [S] end stoppers fit onto all [S] coded cables. Black [L] end stoppers fit onto all [L] coded cables. Red end stoppers fit onto all MINI TWIST cables.
This is the perfect bag for small projects. I love how I can roll the sides down when knitting and how it curls down when I am just storing my project. Great for knitting while traveling.