Morelli Steel Dental Intraoral Orthodontic 4-wire Twist Flex wire Ø.015 "Morelli CrNi Dental Intraoral Orthodontic Twist Flex wire Ø.015" (4 wires twisted in one) Four-Flex is a 4-wire cable. This twisted, spring-tempered leveling cable is ideal for the early stages of treatment. It bends easily and can accept a large deflection before its limit is reached. Provides smooth strength and will not fray or fray when cut. Features: Consists of four small diameter round wires, wires twisted tightly together to form a single cable. High resistance to permanent deformation. Offers continuous light force over a greater distance and working range than solid round 304 grade stainless steel wire. Silver brazed to prevent unraveling, can be trimmed down to 3/8 in. (9.5 mm) without untangling.