Purchased on Amazon about a year ago and used only once indoors for a short time. Neotech Brass Sling Color: Black Length Adjustment: 101.6cm - 144.8cm Product Body Size: 157.5 x 7.6 x 0.6 cm (From the Amazon site) ~Neotech~ The basic concept is "lighter and easier" The Brass Sling was developed to alleviate fatigue in the shoulders and arms, common in brass instruments such as tubas, baritones, and euphoniums. The patented design and built-in control stretch system distribute the weight of the instrument over a wide area. There is no pressure on the lips, eliminating the need to use the lips as a balance point. The non-slip material on the back of the strap secures the instrument and prevents slipping during performance. Because the instrument can be easily carried, there is no need to put it down between performances, allowing for comfortable playing in both beautiful concert halls and on the street. When you think "if only I had another hand," this Brass Sling is perfect.