This is a starter pack of 15 bags to hold floss skeins, plus a storage ring to hold them together. The snap lock bags are 7.6 x 13 cm in size and they have a panel on the front to write the colour number. The bags are then attached to the 4 cm easy-opening ring. You can fit as many bags onto the ring as you want, so you can hold all you need for your current project. Great for travel as bags & ring are very compact. Similar to Floss-A-Way bags. Note that we also sell economy packs of 30 and 100 bags but they do not include a storage ring.