Ring

A finger ring comprising an elastic string which is a closed, circular loop, beads strung on the string so that the beads are disposed along substantially the entire circumference of the loop when the ring is off the finger and the elastic string is in the contracted condition, the loop being of a size such that the ring can be conveniently slipped onto the finger and when in place on the finger the elastic will be extended so that the ring grips the finger and tends to remain in place thereon, wherein at least some of the beads have rounded surfaces so that when the ring is in place on the finger other than the thumb, it will slide circumferentially without jerking when beads having said rounded surfaces are pumped circumferentially with the thumb and wherein one of the beads includes means for causing jerking to occur when said one bead is pumped, said means including square corners on said one bead projecting radially inward and outward of the ring beyond the peripheries of the beads adjacent to said one bead, thereby to engage the skin when said one bead is moved circumferentially.