Loops that do not constrict,

Unlike the other sling trainers which are currently in fashion, there are hanging straps here instead of handles. Therefore, it seems to be better suited for special purposes rehab.
Whether this justifies a higher price? Anyway, I feel the loops not constricting when I fullweight hang myself in the loops and thus the vortex distance, but they are unlikely to be much narrower.
Some Billlig alternatives to 50 euros one reads occasionally that the retaining buckle higher loads can not withstand it and so came to nasty injuries. When Rehape there this adjustment mechanism is not, but is achieved by a knot which can be easily loosened to adjust and then lock again and my 80kg bodyweight endure loose. By dispensing with metal carabiner and the adjuster part is relatively light and easy to transport.