Unique spill free suction mug is the best mug ever that can be use in offices or anywhere.When you put a coffee mug beside computers or paper document, you will wet your computers or files if you knock down the mug by accident. A common coffee mug is hard to stay stable when it is in your driving car When your kids play at school, they may knock down mugs and the boiled water scalds other children. This coffee cup can help you avoid all above embarrassing experiences.This mug is a good gift for you, your colleagues and your children.Strong suction, never fall over, can pick up easily by vertical lift,and the built-in tea strainer of this coffee mug is an effective filter in drinking tea.This suction mug is light and handy, will not be a burden when you work or travel,and can preserve heat for more than three hours.When you put a coffee mug beside computers or paper document, you will wet your computers or files if you knock down the mug by accident. A common coffee mug is hard to stay stable when it is in your driving car When your kids play at school, they may knock down mugs and the boiled water scalds other children. This coffee cup can help you avoid all above embarrassing experiences.This mug is a good gift for you, your colleagues and your children.Strong suction, never fall over, can pick up easily by vertical lift,and the built-in tea strainer of this coffee mug is an effective filter in drinking tea.This suction mug is light and handy, will not be a burden when you work or travel,and can preserve heat for more than three hours.