3M High Strength Small Hole Repair All in One Applicator Tool has a unique form factor to include everything you need for small wall repairs. The innovative bottle has a putty knife, primer enhanced spackle, and sanding pad all in one convenient tool. This product is a perfect addition to anyone's junk drawer or painting supplies for quick fixes. Details: For hole repairs up to 3" (7.6 cm) in diameter Makes repairs 3X faster than traditional spackling Quick and easy repair for nicks and nail holes Primer enhanced spackling compound for great hiding power Resists flashing of paint No shrinking, cracking, or sagging Lightweigth spackle compound For interior use or exterior when finished with exterior paint sealer