diff --git a/4.-Final-assembly.md b/4.-Final-assembly.md
index 573b31c..a3f0ceb 100644
--- a/4.-Final-assembly.md
+++ b/4.-Final-assembly.md
@@ -7,28 +7,36 @@ In this section, you'll go over how to put the two halves of the enclosure toget
 
 - 2.5mm Allen key or screwdriver
 
-## Step 2: Put the top onto the base
+## Step 2: Hardware
+**TODO PIX**
+
+- 2x M3x12mm flat-countersunk machine screws
+- 2x M3x6mm socket cap machine screws
+- 4x friction pads
+- 1x snooker ball
+
+## Step 3: Put the top onto the base
 **TODO video of assembling the mouse**
 
 You might need to use a bit of force to get the two halves together.
 
-## Step 3: Insert the screws into the base
+## Step 4: Insert the screws into the base
 **TODO pix of mouse and M3x12mm and M3x6mm screws**
 
 Two of the holes are for the countersunk screws, and two are for the socket cap screws. It should be pretty evident which of these is which.
 
-## Step 4: Apply the friction pads to the base
+## Step 5: Apply the friction pads to the base
 **TODO pix of friction pads and mouse base**
 
-## Step 5: Insert the ball
+## Step 6: Insert the ball
 **TODO pix of ball being dropped into the top**
 
 Depending on slight size variations, you might need to push the ball in with some force, but it shouldn't require a large amount of force.
 
-## Step 6: Verify that the Ploopy Mouse is working correctly
+## Step 7: Verify that the Ploopy Mouse is working correctly
 Plug the mouse into your computer. The buttons should be clicking, and if you move the ball, it should move the cursor.
 
-## Step 7: All done!
+## Step 8: All done!
 **TODO PIX completed enclosure halves**
 
 Congrats, you finished building the Ploopy Mouse!