NWOB. NEVER USED! I actually never used this pair as I had another pair. No box. From a smoke-free household About this item: COLD THERAPY - Use as an ice pack to relieve swelling and pain caused by engorgement, clogged ducts, and mastitis in the early days of breastfeeding HOT THERAPY - Use as a heating pad for comfort and to encourage milk let-down during breastfeeding BREAST PUMP AID - Use hot to encourage milk let-down and reduce time spent pumping RELIEF FOR TENDER BREASTS - Lansinoh breast therapy packs provide therapeutic relief for the most common breastfeeding challenges REUSABLE PADS DESIGNED FOR COMFORT - Soft, flexible pads conform to your breast for 360 relief, again and again RECOMMENDED - Lactation consultant recommended; latex and lead-free, BPA/BPS free and microwave safe