Protec"s Baritone/Tenor/Alto Leather "Less Stress" Neck Straps are comprised of soft and beautiful high grade leather and have separate left and right neck pads to reduce pressure to the middle spine. EZ grab metal slider allows for effortless length adjustment, while a rubber sleeve on the sturdy metal trigger swivel snap gently secures the strap to your horn. Available in two sizes: L310M - adjusts between 18 to 22" from the neck strap to the bottom of the hook; neck strap measures 2" wide. L305M - adjusts between 19 to 24” from the neck strap to the bottom of the hook; neck strap measures 2" wide.