The YSL350C has a strong and pleasing tone which can slide smoothly from note to note. But unlike most other instruments, most trombones cannot be played by small children. Modern trombones were designed for adults, and many would-be beginners just can't stretch their arms far enough to play all the slide positions. This is a full-sized trombone, using the traditional slide positions, but it's much shorter in length. With its ascending valve, you can play a full scale without using the two farthest positions.