The Red Lp twist shaker is the loudest of the three. Lp also offers up a Blue and a yellow for Medium and soft sounds as well. The twist shakers twist apart or adjoin each other. This allows the performer to choose whether they want the volume and articulation of one tube shaker or two. It is as if you have two shakers in one! These shakers are sold as a pair (two single tubes that twist together). Please message us through eBay if you have any questions.