ITEM NAME:2pcs Dental Orthodontic Traction Chain Round Buttons with Chain Super Q3W2 Z0T1 Description: 100% new high quality. Color: As the picture shows Item Description: Bondable to cuspids impacted palatally or labially Stainless metal minimizes the potential for allergic reaction Safe for Nickel sensitive patients Take Control of Impacted Cuspids Bondable to cuspids impacted palatally or labially. The traction chain swings freely within the eyelet. It can be cut easily to achieve the desired length. The traction chain can be tied to the archwire with elastic thread or tubing to provide traction in the desired direction. which helps to limit the amount of nickel ions that can be released into the oral environmen Package:2pcs/bag* Dental Orthodontic Traction Chain.The traction chain can be tied to the archwire with elastic thread or tubing to provide traction in the desired direction. The traction chain swings freely within the eyelet. It can be cut easily to achieve the desired length.