Raw silk is produced by a silkworm larva's cocoon. These natural waxes and gums are removed prior to the braiding process, allowing for a tighter, more compact braid. Our silk suture is dyed black for easier visibility in tissue. Our silk suture is non-absorbable and multifilament in nature. Although our classifies its silk suture as a non-absorbable suture, it loses most of its tensile strength in one year, and is completely absorbed in 2 years. Silk behaves like a very slow absorbing suture. Our coats its silk in silicon to limit absorption, increase ductility, and minimize tissue reactivity. 12pcs/box.50boxes/ctn. Ctn size:34cmx26x28cm. -