Tuba Robot Funny Musical Instrument T-Shirt White Text Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Design copyright Karen A Barthol. Tuba text with a robot sousaphone player is a funny gift t-shirt design for low brass musicians, music teachers and school students in concert and marching band. Lightweight, Classic fit, Double-needle sleeve and bottom hem