3M 357 Bondo Spreader, 3 Pack Bondo Spreaders make applying any filler, putty, spackle, caulk or glaze easy Equipped with 3 different size spreaders Spreaders are highly flexible, allowing for use on curved or flat surfaces Clean edge will ensure a consistently smooth finish on any surface Reusable and can be cleaned with acetone after use Designed specifically for spreading filler, putty, spackle, caulk or glaze Three sizes in each pack virtually assures the right size spreader for the job Plastic construction is flexible for easy use, especially on curved surfaces Thin, clean edge improves control for smooth application Reusable spreaders are easily cleaned with acetone to save time and money