The Manta Ray squat support is on the surface a pretty simple device. It is a piece of molded plastic in the shape of a Manta Ray. It has a groove through the middle that clips onto the bar, and wings that spread out over your back and shoulders for support and stabilization. It is both incredibly simple to use, and highly effective. To use it, simply clip it onto the bar via a grove in the mold. This puts the bar in an ideal position, and spreads the weight over a wider area across your back and shoulders thereby making the lift far more comfortable. Then step underneath and rest it across your back.