I received three charger blocks, each securely packaged in bubble wrap. There were no visible scuffs or damages upon arrival. Each unit measures approximately 1.2 inches in width, so ensure your power extension has adequate space to accommodate them. These chargers can power one or two devices simultaneously; however, charging two items at once results in a slower charging rate. Additionally, I observed that the charging blocks tend to warm up quickly during use, but so far, they have not gotten excessively hot and the heat only occurs while charging.