This blanket is made from specialized materials designed to reduce EMF towards the covered area and it is custom-sewn prevents any gaps which the EMR may slip through.Specifications:✔️ 47dB average attenuation (99% shielding)✔️ Internal fabric certified Oeko-Tex Class 100 and 1000 ✔️ Raw materials: 40% cotton, 30% polyester, 30% stainless steel✔️ Fully protected from EMF✔️ Tested and made in Canada✔️ Size: 38 inch * 27 inchCare Instructions: Gentle wash (preferably TEXCARE detergent) on 30°C/86°F. Hang dry (without direct and constant sunlight). Do not iron.