Silicone tie, which is indispensable for making a red fang unit, supports every scene with abundant color variations.CV8 (V type) & (8 types)."V type" - Two types of large waves created by a precisely calculated curve and fine waves in the cut tail part attract the threaded target."8 type" - A figure eight shape that combines two slightly different curves. By changing the size, interference between ties is suppressed and stable wavy action is generated.Quantity (books) : 4 (V type x 2, 8 type x 2)