Features: This holder is used for aerial yoga, suspension resistance bands, Crossfit Olympic rings, battle ropes, boxing sandbags, rings, swings, chair lifts, battle ropes. It is the best solution for wall fixing. This product comes with an installation manual, which can be flexibly installed in any location indoors and outdoors. Make exercise more convenient, Material: High-quality steel, a single anchor can carry 550 pounds. Can your safety during exercise Size: Diameter 4.72 (12cm), height 2.36 (6cm), hole spacing 3.75 (95mm), hole diameter 0.47 (12mm) Package Included: we've included 2 anchors, 4 Self-tapping screws 4 concrete expander bolts And installation instructions. For any reason you're not completely satisfied, you can ask for a replacement or full refund.