Features: 1. Application: Hydraulic repair seal kit. This kit compatible with Lincoln Walker 93657 4-Ton Hydraulic Floor Jack. 2. Full kit seals to replace or repair for 4 Ton floor jack hydraulic and extend the service life of your Floor Jack. 3. Material: Rubber, plastic, metal. You'd better soak the seals with oil before installing. 4. High Grade Components that Meet or Exceed OEM Specifications. 5. Satisfaction Guarantee: We aims to provide excellent products and best service for customers. You can simply return it if you are not satisfied with the product. We support 30 days full refund for return and 12 month's warranty. .