Natural Edge

The device designed by Specialized Masochism is made to help develop absolute strength, contact strength, and endurance of the fingers in any grip position. Besides a generous depth and roundover, offset internal chambers help maximize force production and minimize strain across each finger.

The edge on this version is the Natural Platform and is an averaging of all the many options you can see on the website. 

The ring and index fingers are even, the pinky is between the two options, and the sizes are a little broader on each end. No inserts are included. It will fit a broad group of people quite well. The versions available on the website are made to order to an individual which is why there delays and greater expenses.