Prime shipping didn?t arrive on time but it?s fine! I put one drywall screw in the center hole, and into a stud. We use this intercom system for communication on our boat when anchoring , docking or any other activities when we must be in separate areas of the boat. Great app direction. These are a bit shinier/glossier than I expected them to be, definitely not the same material as my Adrina or Rio crocs, but its not overwhelming. Also very affordable. Bien pero los tornillos inferiores que soportan la estructura no son iguales entre ellos ya alguno no encaja bien, por lo que acaba desequilibrado el zapatero. 5 (US) and the size 11 fits perfectly. The VTX 25s are the only plates noticeably larger than the BFCOs. The cool little portable jobs just dont do it for me.