Create fine detailing and interesting shapes using the Royal & Langnickel® Natural & Synth Sponge Pack. The harvested and processed Caribbean natural sponges and the sea wool synthetic sponges are suitable for blotting excess water, making unique patterns, preventing paints from blending on the surface and more.Details:Sea woolUse and care directions12 packs (4 sponges per package, 48 total sponges)