✅【Part Number】: Ex mark 109-8076, 1098076. ✅【Specification】: Inner Diameter: 2/3"(17mm) , Outer Diameter: 5-5/8"(143mm) , Height: 1-1/4"(32mm). ✅【Compatible with】: Ex mark E-Series Lazer Z, Lazer Z, Lazer Z AS, Lazer Z Z-Series, S-Series Lazer Z, X-Series Lazer Z, Z-Series Lazer Z. ✅【Please note】Please pay attention to the size of the product before purchasing and make an accurate purchase according to the size you need. ✅【After-Sales Service】: Professional manufacturing and strict quality control make us confident in our Products, Our replacement parts are built to meet or exceed OEM standards; If you have any quality or installation issues, please feel free to contact us at any time. 109-8076