NUK First Choice+ Bottles feature the original NUK orthodontic shaped teat with a special, super soft zone which adapts perfectly to baby's palate. The teat has an extra wide lip support which simulates breast feeding as closely as possible and the improved NUK Anti-Colic Air System minimises infant colic caused by the harmful swallowing of air, this also helps prevent the teat from collapsing. NUK First Choice+ Bottles are compatible with all First Choice and First Choice+Teats. • 4 x 300ml bottles fitted with a First Choice+ Size 1 (0-6 months) Silicone Medium Feed Hole Teat and a sealing disc for leak-proof transportation. • Approved by the British Dental Health Foundation. BPA (Bisphenol A) free.