Formal to casual, stylish to rustic, each piece we craft is designed to capture the spirit of your life. Able to withstand temperatures up to 1000 degrees F, Wilton Armetale® Serveware is ideal for your cooking needs. Food stays hot longer and perfect for oven, stove or grill. Designed and crafted by hand, these beautiful products were made to last a lifetime. Hand wash. Boston medium oval tray measures 13-3/4 inch long x 8-1/2 inch wide.