Installation instruction is not included.Flex Cable is responsible for transmitting data between components.Products received by customers would be the same as the pictures show.The installation instruction is NOT included with the purchase.Please ask for professional assistance if necessary.Compatible to:AppleiPhone 4Package includes:1. Proximity Sensor Flex Cable x12. Free Cross Screwdriver x13. Free Suction Cup x14. Free Housing Tool x1*Components not on the list are not included.SKU#:PH-OTHERPARTS-APP-IPHONE4-Estimated shipping time10-16 working days (United States)5-10 working days (United Kingdom)12-20 working days  (European Region such as Denmark, Finland, France, Germany, Greece, Russia)12-24 working days  (Remote Region such as South America, Middle East, Africa, South East Asia, etc.)During long public holidays, e.g. Christmas and Chinese New Year season(Nov 15-Feb 15),shipping time would be delayed for AT LEAST 14 DAYS,please see our shipping rate page for detail.ATTNETION:Customers please ensure that they are well acknowledged with the shippment detailBEFORE PURCHASE, please contact us with the item's ASIN and country if there is any question.H162