Features:Take Control of Impacted CuspidsBondable 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.The potential for allergic reaction is minimized with a plating of 24 karat gold,Round Base features 3.5mm diameter Flat Base, 80 gauge mesh basePackage Content: 2 pcs / Pack