This is a longer version of Dunlop 212, too long to be used at it is but great for those who want to perfectly adapt it to a specific length, which I did by cleanly cutting it at 6 cm with a diamond wire hand saw blade.
I have two main slides, the Ariel Posen brass slide and the Dunlop 212, both perfect fits for me.
The adapted Dunlop 211 is for those rare occasions when I need a slide that covers all six strings of my resonator.
The sound of glass is smooth and beautiful while the sound of brass is also smooth but with an extra "bite" that I love.