Soft, flexible silicone gel pads, soft conform to breast and can be worn under bra. These thermo gel breast pads provide both warming and cooling therapy Warming therapy helps stimulate milk production. Cooling relief soothes tender breasts. Cold use to soothe sore or engorged breasts, Keep in fridge or freezer, It works better. Warm use to stimulate milk flow before feeding, Lightly dampen the sleeves, as moist heat gives an extra comfortable feel and helps stimulation. Specification: Material: PVC+SAP Size: Approx.Diameter: 18cm /7.08 inch 11 Colors Optional Package Includes: 2 Pieces Thermal Gel Pads Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement. We guarantee the style is the same as shown in the pictures. Thanks for your understanding and enjoy your shopping moment!