This yarn bow was created from a recycled bowling ball. The resin provides a silky smooth surface which yarn will glide over with no effort and the weight (Over 2lbs) will ensure a stable vessel for the yarn to tumble in as you work. The resin may show signs of use from it's life as a bowling ball, such as fractures or air bubbles from the original manufacturing process of the ball. When I turn the ball I smooth these over to ensure they will not snag any fibers and should not impact your work nor the life of the bowl. Give a bowling ball a new purpose and a new home. Interior Size: 7.75"W x 3.5" Deep (19.7cm X 8.9cm) Should fit any size yarn ball and will work with any type of fiber.