Size: 1.4*6 1.4*6 1.4*8 1.6*8 1.6*9 1.8*9 1.8*10 1.6*10 The screw is made of high resistance to breakage titanium alloy, has a simple design and at the same time provides optimum anchorage, housing rate The screw head has a low, rounded design to reduce soft tissue irritation and a hexagonal shape for adjustment and control during the placement of the screw.