New price low. Amazon has the 3M High Strength Large Hole Repair Kit (For Holes 3" to 5" in Diameter) for $12 - 5% off with Subscribe & Save (can cancel at any time) = $11 with free shipping on $35+ or with Prime. $18 at Home Depot. Comes with 12oz compound, self-adhesive back plate, putty knife, and sanding pad.