Provide a secure way for customers to drop off their vehicle for service before the facility opens. Key Drop Envelopes contain a customer check list that provides space for the customer's name, address, phone number, license plate number, year, make, model, color, mileage, and more. After the information is completed the customer's keys are placed inside and sealed shut. Then the Service Drop Envelopes are placed in the correct slot on the after hour drop box. Envelopes are sold 500 per pack. They measure 3 ⅜"W x 6"H.