March Scopes 3.5inch Large Focus Wheel Black. March has produced a Large Wheel to fit over the Middle Focus wheel to enhance the dials ability to focus clearly. A great addition to Air Rifle Field Target and other shooting disciplines requiring accuracy. Large wheel cant be used alone as it is put on a middle wheel. Specifications for March Scopes Large Middle Focus Rifle Scope Wheels: Manufacturer: March Scopes Color: Black Finish: Type 3 Hard Coat Anodizing Fabric/Material: 7075 Aluminum Fit: Universal Gun Type: Rifle Gun Make: Universal Gun Model: Universal Country of Origin: Japan Package Contents: March Scopes Large Middle Focus Rifle Scope Wheels March Scopes 2-DB343-0: 3.5inch Large Focus Wheel Black