Estee Lauder(tm) Double Wear Stay in Place matte powder refill pan for this custom coverage powder foundation...This is a refill that fits into your existing Double Wear Matte Powder Foundation compact. One powder. Flawless custom coverage. Multi uses. Dress it up or down. Wear it as your foundation, or over it. Full on or for touch ups. Lasts all day...or all night. It's both a foundation and a setting powder, with 12-hour wear. Versatile formula is silky soft, weightless, flawless. Reduces the look of pores. Controls oil and shine for up to 12 hours. Stays color true. Waterproof. Sweat- and humidity-resistant. Customize your coverage with a flip of the two-sided applicator. Use the sponge side for full coverage, the velvety side for medium. Wet the applicator for sheer coverage. For the ultimate matte finish, use a powder brush to sweep it over Double Wear Stay-in-Place Makeup as a setting powder. Find your perfect shade: Choose your skin's intensity level (from light to deep) and undertone (cool, neutral, or warm). HOW TO DETERMINE YOUR UNDERTONE Undertone is the way your bare skin looks and behaves. Which one sounds most like you? Cool (C) undertones: Bare skin has a rosy tone and burns easily in the sun. Neutral (N) undertones: Bare skin is more even toned, not too pink or golden. Warm (W) undertones: Bare skin has a golden or olive tone and tans easily in the sun. To replace the refill: Open the compact and lift the blue tray. Then pop out the used powder pan, pressing from underneath with both thumbs until it pops out. Insert new refill. Snap into place. To enjoy the refilled compact: Use the sponge side to apply the foundation for full coverage. Use the velvety side for medium coverage. Wet applicator for sheer coverage. Maximize your matte look by applying liquid Double Wear Stay-in-Place Makeup first, then the Powder Makeup. It's a matte made in heaven.