The ecosystem Sippy Trainer Spouts from Green to Grow feature a cross-cut opening that is spill-resistant making them a perfect choice for transitioning baby from the bottle to the next stage.
The spouts are made from medical grade silicone and are free from BPA, phthalates, PVC and lead.

Each pack contains two sippy trainer spouts and are compatible with both ecosystem Sippy Trainer Cups and Green to Grow 300ml wide neck bottles.
So you can purchase the Sippy Trainer Cup spouts and the ecosystem Sippy Trainer Cup handles and convert your 300ml Wide Green to Grow bottle into a sippy cup!

Complies with EN 14350 and CPSIA

From the founders of Green to Grow:

We have learned, in our efforts to serve as stewards of health and wellbeing for babies and children, that it is impossible to separate what is best for babies and children from what is best for the earth. To this end, we are committed to seeking environmentally sound business solutions and consider the environmental impact of every decision we make. We use 100% recycled paper and soy inks in all of our packaging and printed corporate materials and have partnered with 1% for the Planet, pledging to donate 1% of our annual sales to environmental causes.