More information for the adjustable ball mount:

1. Adjustable draw bar with a 3" to 7.5" drop range 

2. 1.75" - 6.25" rise and a hitch ball hole size of 1"  

3.Powder coated black finish

4.You can adjust it by yourself

R & D Capability

1. Over 20 experienced R & D engineers – majority with Masters  degrees

2. Ability to do OEM customized designs

3. Patents and copyrights on original inventions

4. Comprehensive design capabilities covering mechanics, electricity, and industrial outlook

5.Experienced in world popular CAD software

6. Current developments

Manufacturing Capability

1. 2 facilities located in Shanghai and Qingdao

 2. Comprehensive manufacturing facilities, equipped with the most modern technology

3. 100% Online Quality Control

4. Function Inspections of each shipment

 5. Developing proprietary testing lab

Comprehensive Testing

Jack lifetime testing

1. Dynamic test

2. Static test

Coupler testing

1. In accordance with SAE J684 Standard

2. Additional Ball Mount and Trailer Ball testing in accordance with SAE J684 and V-5 Standard

receiver hitch mount