Midwest Living Homes Seasonal Decorating How To Arm-Knit a Comfy Lap Throw How To Arm-Knit a Comfy Lap Throw Roving, the bundled fibers used to spin yarn, is perfect for a textured blanket and has enough bulk to make arm-knitting a breeze. Learn how here. October 18, 2017 Advertisement Pin FB More Tweet Email Send Text Message Print