Features 1) Solid bell bronze sleeve for durability and warm tone 2) Delrin ring section comes in four sizes (all included) to fit most hand sizes and different fingers 3) With the AX Reversible Guitar Slide, not only do you have the option of using different fingers, but its special 2-piece design allows the "sleeve" portion to be rotated in less than a second so that the finger it's attached to can be used unencumbered for normal finger playing 4) The move itself is done with one hand, so quickly that it doesn't interupt a solo 5) The Delrin ring section comes with four ring sizes to accomodate most players