This is the original Manta Ray manufactured in the United States by Advanced Fitness. Don't accept any knock-off versions. Made with high-tech, polyurethane polymer and virtually indestructible for years of tough use. You could drive a big truck over the Manta Ray, without doing more than marring the surface. When using the Manta Ray, your hands control where the device and bar sit on your upper body, but you no longer need to jack your elbows back to keep the bar up on your shoulders.

Bar size info:

Easy to use. Snap it onto the bar to keep it centered on every set. Doesn’t roll down your back like a typical, foam-based barbell pad. Fits anywhere from the 1" (25.4mm) home gym bar up to the larger standard Olympic bars, which are 1-1/16" to 1-1/8" (or 25.4mm to 30mm). Some equipment manufacturers have started making their bars much larger, trying to do what the Manta Ray does, increase the surface area. You can determine your bar size by wrapping a cloth tape measure around your bar (or use a piece of paper and lay it flat to measure) and the device can be forced onto a bar just over 4" in circumference (101.6mm). It will not fit a 1-1/4" (32mm) or larger bar.