Lansinoh Therapearl 3-In-1 Breast Therapy Brings Advanced Relief For A Number Of Conditions Associated With Breastfeeding. Therapearl Can Be Used Hot Or Cold & Has Also Been Specially Designed To Fit Around Your Breast Pump To Encourage Let Down & Promote Faster Milk Flow. Reusable & Non-Toxic, These Unique Packs Are Doctor Designed & Lactation Consultant Approved.