Specially designed for Warmies® Reusable Cloth Wipes. The Wipes Warmer’s enhanced 3-part heating unit provides better warming and the unique Ever-Fresh® System keeps wipes moist and fresh. Four (4) Warmies® included. Additional Warmies® sold separately. The Patented Ever-Fresh® System helps keep your wipes the freshest they can be to soothe your Baby’s delicate skin. This Patented System works 3 ways: Moisture Retention The Ever-Fresh pillow keeps wipes moist by an evaporation and condensation process. Micropores in the pillow trap and release water as needed to maintain wipes’ moisture content. Non-Browning Keeping wipes moist prevents most discoloration caused when wipes are warmed. Discoloration also occurs when aloe, lotions and other additives typically found in baby wipes are warmed over time. The Ever-Fresh pillow effectively insulates your wipes from the warming surface, preventing browning. Anti-Microbial Both the Ultimate Wipes Warmer ’s tub and the Ever-Fresh pillow are treated with an EPA approved additive to inhibit the growth of microorganisms that may cause spoilage, odors and mildew.