Specification: Condition: new Applicable models: 3/4" to 1" inch w / Step Key Fit model: 3/4" to 1" inch w / Step Key Matching relationship: applicable Features: 3/4" to 1" crank sleeve adapter with step keys. Suitable for any motor with 3/4 "shaft and 3/16" keyway. The adapter is approximately 2.3 inches long and includes the step keys required for 1/4 button input to 3/16 button mode. Brand Unbranded Type Engine Country/Region of Manufacture United States MPN Does Not Apply Manufacturer Part Number Does not apply UPC Does not apply .