Heart piercing clicker is ideal for daith piercing, but can also be used in upper earlobe, mid helix and tragus piercings. Material: titanium, zircon Diameter: 8mmSold as single piece.Heart piercing clicker is ideal for daith piercing, but can also be used in upper earlobe, mid helix and tragus piercings. Material: titanium, zircon Diameter: 8mmSold as single piece.