Each set of drawer slides consist of four components which are bundled together with adhesive tape.
Remove the tape and separate the parts.

Step One
Turn the completed drawer upside down.

Step Two
Place the right hand drawer slide (DR) along the right hand drawer side (this side will have a red mark on the bottom edge). The wheel will overhang at the back.

Step Three
Using two of the small wood screws, screw the drawer slide onto the drawer side. Use the two holes in the drawer slide that match up to the holes drilled in drawer side.

Step Four
Attach the left drawer slide on to the left drawer side; this side will have a green mark on the bottom edge.