Designed to soothe tired feet and other common discomforts, this Hot & Cold Treatment Foot Roller Massager features a durable plastic roller in an ergonomic shape that conforms to the curve of your foot plus a textured surface that comfortable massages. Massager can be microwaved or placed in the refrigerator or freezer and and stays hot or cold for up to 20 minutes. Measures approximately 7.625" long x 3.25" in diameter. Comes in assorted colors: green and pink. Comes packaged in a hanging box. Box measures approximately 3.375" x 3.5" x 8.875".