
The Ledge MacBook accessory, currently available through Kickstarter, is designed to attach to the edge of a MacBook to turn the sharp front edge into a more comfortable, rounded edge, alleviating the irritation that some users feel when using a MacBook.
Complaints about the sharp edges of the MacBook have been around for years, and a number of solutions have surfaced, but few are as elegant as the Ledge, which blends in perfectly with the aluminum of newer laptops like the Retina MacBook Pro and the MacBook Air.
Ledge, which comes in two left/right pieces, is designed to install on any MacBook in just a few seconds, attaching onto the edge of the chassis via 3M adhesive. Ledge adds little extra bulk, and because it is made from the same aluminum as the MacBook, it is unobtrusive and blends in well. Ledge is fully portable and can remain attached to a MacBook at all times.We have been MacBook users for many years, owning different models along the way. They have all shared one design trait. Sharp edges. No matter which MacBook model we have used, the sharp edges where we rested our wrists and forearms was uncomfortable and irritating.
Searching for a solution, we found nothing acceptable. Nothing existed that was made for MacBook. We decided to create our own solution. Ledge began with several sketches, and led to a staggering amount of prototypes, but the end results were better than we ever expected. It becomes an extension of your MacBook.

Ledge is compatible with MacBook and MacBook Pros from 2008 and later, the Retina MacBook Pro, and the MacBook Air from 2010 and later.
Article Link: 'Ledge' Protects Wrists From Sharp MacBook Edges