The LiquiSlide - Pinky Sized Glass Guitar Slide - Yellow

Max USA Ring Size: 8.5
UK Size: R
European Ring Size: 58.5
MM Diameter Across Hole: 18.5 mm
Inside Circumference of Ring: 58.12 mm
Length: 2.69" or 68.33 mm
Outer Wall to Outer Wall Diameter: 1.08" or 27 mm
Circumference: 3.39" or 86.1 mm

Since LiquiSlide is handmade, the dimensions can vary by about 5%