Businesses who buy from wholesalers or direct from producers for sale to the public in shops or other retail outlets. Traditional retailers (as opposed to online retailers) are usually situated near to where people live to enable the public to easily access the products they provide. Retailers often advertise the goods they sell and provide feedback to the producers and / or wholesalers on customer demand and / or reaction to products. They add on a profit margin to the price they pay for the product from the producer (or wholesaler) before selling it on to the end-customer or consumer. For members of the general public / consumers, besides providing convenient access to a wide range of goods, retailers provide advice and after sales service, and may also provide credit facilities.