<b><br>From the drop down list you will need to select whether you want a nylon bushing or a steel bearing. <br><br>You will receive only ONE (1) bearing with a pair of springs. <br><br>*Winding and Stationary cones are included and are Pre-installed (Cones are Imported)</b> <br><br>First of all it is very important to have the correct spring for your door, if the spring is not matched correctly to the door, it will not work properly and can be dangerous or damage your operator. <br><br> Step 1 is to determine the spring inside diameter, if the spring is broken you can simply use a ruler to measure the inside of the broken end, if the spring is still in one piece you can measure the outside and deduct the wire size X 2. You also may be able to find stampings on the cones which will help determine the ID, ( P200 or P2000 for 2” and P175 for 1 ¾”) The most common sizes in residential springs are 1 3/4" and 2" ( Raynor doors use 2 ¼” ID ) <br><br> Step 2 is to measure the length of the spring, Measure the spring only, not including the winding and stationary cone. If the spring is broken measure each piece and add the two measurements together to get the total length. If the spring is still in one piece and wound, it will be longer by 2-3” then when it is relaxed.. the proper way to measure is to unwind the spring to measure the correct length