Used for hanging electric guitar on wall. The guitar holder is sturdy - the arms are internally made of metal and goes through the base, for extra sturdyness. Rubber on arms seems to be good quality and the plastic used for the base is very tough. Have tested on symmetric and asymmetric heads - both hangs very well and locks in just fine. Bought this version, with "shorter" arms as I didn't want the guitar to hang too far from the wall. Despite this, it seems like even the shorter arms would accomodate thicker bodies. Recommendable product.