Nuk offers the non spill silicone spout as a replacement spout for all nuk and disney by nuk learner bottles the nuk non spill spout which is made of silicone a softer more flexible material than tpe is ideal for active babies and the non spill design helps reduce mess non spill spouts are a great aid to help babies make the transition from drinking from a bottle to drinking from a cup suitable for children from 6 months for safety and hygiene purposes replace teat after 1 2 months use