Description Specifications PDF The Vestil Trailer Stabilizing Spin Top Jack is designed to prevent semi-trailers from tipping when disconnected from a tractor during loading and unloading. Additionally, they are utilized to prevent landing gear from sinking into softer surfaces. These jacks come with a flush-type Zerk fitting for lubricating the ACME screw and feature a protective safety yellow powder coat finish. Like all our Lifting Jacks, this Spin Top Jack comes with documentation and certification. **The color of handles included with models may vary between red and black.**Features & Benefits:• Meets OSHA regulations when used with wheel chocks. • Unique design levels trailers parked on sloped ground.• High strength steel construction provides long lasting use. • Reflective collar for great visibility at night. Brand: Origin: USA Model: SP-TOP Description: Spin Top Uniform Static Capacity: 100,000 lb. Uniform Lifting Capacity: 40,000 lb. Service Range: 39½" to 51" Wheel Size | Type: 10" | Hard Rubber Weight 129 lb. Other Specifications: See PDF Documentation: Comes with Test Certificate and Manual Specification Sheet: