A BumpyCrafts Yarn Sack is the perfect accessory to any knitting or crochet project. When you have wound a 100g skein of yarn, you don't want it unravelling inside your project bag. These Sacks are the prefect solution and a very effective way of keeping your yarn intact, allowing you to draw it from the middle of the cake. These sacks are also perfect for a small one skein project bag. Great for grabbing and putting in your purse when out and about. They have proven essential when knitting with colour work, keeping all your different coloured yarns in their own sack, prevents all the tangles!