Plastic 1-3/4″ thick undermount drawer slide spacer.
3/8″ Thick Drawer Slide Spacer With 1/4″ Holes 32mm Apart
11/16″ thick drawer slide spacer with two screw holes 32mm apart.
Plastic 1″ thick drawer slide spacer with 1/4″ hole and 5mm peg spaced 32mm apart.
5/8″ Thick Drawer Slide Spacer With 1/4″ hole and 5mm peg space 32mm apart.