This is the original Black Mountain Freedom Slide (Version 1) in the XL size

The freedom slide!

Switch between traditional and slide guitar, on the fly, whenever you feel the urge!

Revolutionary design allows you to play with four fingers, the way you normally play.

You can bar, fret, play four-finger chords, four-finger scales. There are no limits with the Black Mountain Slide Ring!

This one is an Extra Large