JAPNEESE TECHNOLOGY USED TO MAKE BOTTLES AND GERMAN TECHNOLOGY IS USED TO MAKE LSR NIPPLES. THIS PRODUCT IS BPA FREE AND FOOD GRADE. BABY NIPPLES LONG LASTING LIQUID SILICONE RUBBER WITH HIGH TEAR STRENGTH PRODUCT MADE IN THE MOST HYGEINIC CONDITIONS UNTOUCHED BY HUMAN HANDS. IN QUALITY IT MEETS ALL APPLICABLE INTERNATIONAL STANDARDS AND ISI MARK.