50 sets per box, in total 5Boxes. We commited ourselfs to your 100% satisfaction both with our goods and services. Please message to me immediately before leave us neutral feedback or negtive feedback, We will try our best to resolve any problem for you untill you are satisfied. If the item you received is damaged or defective, Please Leave message immidately. Our guarantee does not cover accidental damage or wear of product caused by customer. Thank you very much for your understanding! We're one of the largest online dental suppliers based on many qualified manufacturers in china. If you Leave message immediately after placing the order, we will make every effort to assist you with your change request. Any help, need or questions, please do not hesitate to Leave message. Looking forward to our friendly & win-win cooperation! The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies.