Feature 1These are foot control air valves used for ranger tire changers. 2Pipe external diameter: 8mm or 0.31in Rod diameter: 10mm or 0.39in 7.8mm or 0.31in. 3Comes with 2-pieces mufflers, perfect operation. 4Steel material for high durability. 5Different types for your choice.Features: These are foot control air valves used for ranger tire changers. Pipe external diameter: 8mm or 0.31in Rod diameter: 10mm or 0.39in 7.8mm or 0.31in. Comes with 2-pieces mufflers, perfect operation. Steel material for high durability. Different types for your choice. Specification: Condition: 100 percent Brand New Material: Steel Main Color: Black Silver Type: Type A(1), Type A(2), Type A(3), Type A(4) (optional) Pipe External Diameter: 8mm or 0.31in Rod Diameter: 10mm or 0.39in 7.8mm or 0.31in Hole Centre Distance: 38mm or 1.50in Package Weight: approx.186-228g Package List: 1 x Foot PedalAirControl Valve .wang-edit-text{ font-family:'Arial' !important } .wang-edit-text table { border-top: 1px solid 000 border-left: 1px solid 000 } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000 border-right: 1px solid 000 padding: 3px 5px } .wang-edit-text table th { text-align: center }Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.