Butterfly Design Cast Iron Tattoo Machine Frame by QLPD. $21.26. This Tattoo Machine Frame is made of top quality cast iron, boasting of durablity. This Cast Iron Tattoo Machine Frame feature a butterfly design, sure to catch people eyes. This Butterfly Design Cast Iron Tattoo Machine Frame is a must addition to your tattoo studio. Features: Solid iron machine frame will resist heat longer Well treated quality and low vibration Help to maintain steady performance But...