10 Packs Dental Orthodontic 1St Molar Buccal Tube Monoblock Roth 022 20 Sets. Name: Orthodontic tube Material: Metal Size: Roth 022 Type: 1st molar bonding single monoblock tube CE, FDA certificated For orthodontic treatment Packaging: 4pcs/Set, 20 Sets/Box, 80PCS in all.