This Package includes Twenty .039" Music Wires by K&S Engineering. FEATURES: Spring steel Great for making landing gear, cabin struts, and so much more! Bend to desired shape Cut to desired length Great for scratch builders, modelers, crafts, machine shops, and architectural applications. Refill item for #4800 Tube & Wire Center INCLUDES: 20 Music Wires SPECS: Diameter: .039" Length: 36" kr10/11/01 ir/kh updt jxs 11/21/12