These remedial hot and cold breast packs are specifically designed to help with common breastfeeding concerns.Lactivate® Ice & Heat Breast Packs provide instant, soothing relief from common breast concerns like blocked ducts, mastitis, engorgement and swelling or post breast surgery. The soft, supple, non-toxic gel bead filled petals gently mould to your breast for targeted relief where you need it most.Features: Non toxic gel beads Reusable Microwave and Freezer Friendly One size fits all Can be used inside a bra or while using a breast pump BPA, PVC free Soft covers made from bamboo Heat Therapy Help to soften the breast for better latching Encourages let down and improves milk flow Can be used with a breast pump to reduce time expressing Simply microwave as instructed on the packaging Cold Therapy Help relieve pain from common breastfeeding concerns such as blocked ducts, engorgement, and mastitis Can be used post breast surgery Simply place in the freezer for 2 - 4 hours before use Australian Register of Therapeutic Goods article number 378140.