flexible curve rulers are popular used in garment design and arts. kearing flexible curves are instantly adjustable to hold any contour shape without support. it is made of lead between steel ribbons, and encased in flexible blue plastic. it has inking edges. calibrated in inch one side, metric the other side. shanghai kearing stationery co,. ltd is the specialist and leading manufacturer in this field in china, and she is a high technology products manufacturer confirmed and awarded by shanghai science & technology committee.kearing can offer you every size of flexible curves with top quality:12"&30cm;16"&40cm;20"&50cm;24"&60cm;30"&75cm;36"&90cm all kearing curves have been selling well in both domestic markets and international markets for their top quality and best price. kearing curves sets have been exported to east-south asia,japan,america,europe,south africa etc. welcome international distributors and sales agencies to join us you can also visit our web site: www/kearing/com or : info/kearing/com for more information.