The Service Ideas RT1025BL Sizzle Thermal Platter Underliner is designed to enhance your dining experience with its efficient temperature retention capabilities. This round platter base measures 12-1/4" in diameter and is specifically made for the RT1025SS model. Its stackable design allows for easy storage, while the dead air space ensures optimal heat retention for your dishes. Crafted from durable black polyester, this underliner is dishwasher safe for convenient cleaning. Made in the USA, it is sold individually and packed 12 per case.