The Rock Slide RK-TRS-SB Polished Brass Guitar Slide - Small 17.5mm x 47.5mm / Ring Size 6-8

The Rock Slide RK-TRS-LB Polished Brass Guitar Slide - Large 21.5mm x 59mm / Ring Size 10-12

The Rock Slide RK-TRS-MB Polished Brass Guitar Slide - Medium 19.5mm x 58mm / Ring Size 8-10.5