Knock Knock Boutique opened its doors in October 2014, and has since been serving the central Pennsylvania area with affordable fashion accessory options. With pieces that rival designer looks, shoppers of all ages will surely find something they love, regardless of their style preferences. Trends change quickly, and Knock Knock will ensure you are keeping current, without spending designer prices. Your new favorite accessory is waiting for you at Knock Knock. Women Owned & Operated.