Notice This cup is dedicated shake cup for protein powders, shakes. It is recommended to use warm water around 40 degrees. If you pour hot water, do not cover the lid and shake it, otherwise the pressure inside will cause the lid to bounce and burn it to your hand SAFETY MATERIAL:GTI plastic bottle is made of high quality food grade safety plastic, dishwasher-safe, durable, BPA-free. LARGE CAPACITY:400-500ml design,can fill more water and ensure enough water for a day.Its transparent with scale,good to make a plan to drink water every day. CONVENIENCE DESIGN : Inside the lid valve seal design,perfect toughness and leak-proof. COMFATABLE TO CARRY :The narrow mouth bottle with human design handleideal for climbing,picnic,travel,hiking,camping,fishing and friends who like to doing outdoor and indoor sports. EASY TO CLEAN:This Wide mouth makes cleaning easy. Package includes: 1XBottle