For 1st Molar Single Tube Roth 0.022 Bondable Non-convertible Monoblock 1 Pack=50 sets, 1 set=4pcs. The sale of this item may be subject to regulation by the U. Food and Drug Administration and. State and local regulatory agencies. If the item is subject to FDA regulation, I will verify your status as an authorized.The item which need to return or change, must ensure that its appearance is not broken, with complete accessories, packaging intact. Our store have been striving to forge the biggest professional supplier for dental products with the most perfect quality and the lowest price. With a whole range of dental production chain, quite a lot of cooperative dental suppliers, huge financial support, and perfect after-sale service, we are now searching for qualified agents from home and abroad to expend the international market. Regulation Number: 21 CFR 872.6070.