Custom Designed Guitar Straps, Picks, Gig Bags, and Musical Instrument Accessories. Henry Heller is dedicated to bringing premier music straps to the home, stage, studio and where ever else a quality strap may be needed. Henry Heller was founded by musicians with the purpose of supplying quality products to other musicians. Our straps are made of quality leathers, cottons and polypropylene. Henry Heller straps are distributed exclusively by OMG Music LLC located in Sheridan, Indiana.