Gem Thirty, Jewel Box Companion Tool By Cheryl Phillips
Ten degree wedge used to create circular quilts. Thirty-six wedge pieces make circles up to 45 inches. Or, use the same wedge to cut extensions to create a circle up to 66 inches. Eighteen wedges make a semi-circle; nine make a quarter circle. 20, 30, 45 and 60 degree angle lines add endless design possibilities.