Marine and Recreational JackHandle Style: SidewindRetracted: 12.75"Extended: 24.75"Clearance: 12.5"Description: Zinc with 6" diameter caster, dual wheelPull Pin Diameter: 1/2"Designed for use with marine and utility trailers. Fulton brand tongue jacks are time-tested and application-proven. Our bolt-on versions include all necessary mounting hardware. The Fulton brand bolt-thru swivel mounts use 3-D formed heavy-gauge steel stampings and proprietary bushing material for a mount with minimal deflection and maximum support. All mounts fit up to a 3" x 5" trailer frame.Extensive choice of popular modelsStrong proprietary bushing materialsStable formed heavy-gauge steel constructionDependable designWARNING: This product can expose you to chemicals including BISPHENOL A (BPA) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.