For a quality design it's important to use quality materials, and this 100% silk blue Griffin bead cord is an excellent option. Griffin uses a specific manufacturing process for their silk cord that puts just the right amount of tension on the thread and avoids tangling and knotting. This blue No. 10 silk cord is great for knotting beads with 1mm holes to create fashionable jewelry designs. The card comes with two meters of silk already threaded with a flexible needle, eliminating the hassle of threading or doubling over the cord.