Come and Check Our Branding Solutions.This student water bottle has a bounce switch that can be pushed up or down. The bounce switch can be pushed up to open the cap and pushed down to lock the cap, which is very convenient to use. It's a high-value, lightweight cup, fresh, stylish and portable. With it, you can travel and replenish water anytime, anywhere. The lid is made of food-grade PP material for drinking water, which is healthy and portable. Pls check inventory and detailed info before placing your orders.