This is a 1 1/2" Tab. It makes a great focal, and will also work well with the XL Lentil. You can use the bottom of this tool with the Lentil top and get a nice flat back lentil, that lays easily and is stunning to wear! There are pics of the tool and bead to follow, but I've had requests to get this one in the store, so while I have them, ready to ship, they've eluded the camera. You'll love it if you like focals!