Mobile Phone and Tablet Sling Grip

The Thing Sling is made for mobile devices but it will
actually attach to any flat clean surface using the included 3m adhesive
strip. The thing sling uses an elastic strip to bungee your two to
three fingers close to your phone. This means that even if your hand
goes limp, your phone stays put. According to thing sling, the most
common time you’ll drop your phone is while taking a picture. The thing
sling allows you to take portrait photos without worrying about anything
but the shot. It also adds some noticeable stability when shooting
video.