The Astro Pneumatic 4526 Plastic Spreaders are 4 inch yellow applicators designed for smooth and consistent spreading of body fillers, putty, resin, and epoxies. Their flexible plastic construction conforms to curved surfaces, allowing even application across a variety of repair areas. Built for durability, the spreaders withstand repeated use but are economical enough to be disposable when needed. Supplied in a box of 100, they are ideal for automotive body shops, fiberglass repair, and general filler application tasks.