We are the general agent of DNM in Chinese Mainland. Weight: 200mm approx. Dark hard anodized AL-6061 shock body "in one piece". Spring rate: 350/450/550/650/750 lb. We have these 18/20/22/24/26/28/30/32/34/40/42/44/45/48/50/52/54/56/68mm x 8mm bushings.