These are the all new Licensed Dual Spring Shocks to hit the market and are officially Licensed from King Offroad Shocks. These new shocks feature a completely new design from the ground up and are built and ready to handle the rocks. Your scale build will never be the same once you bolt up a set of these awesome looking shocks! Now in a larger body diameter. Specifications: Machined Billet Aluminum King on Top and Retainer Ring Dual Spring Design Steel Rod End Ball Ball Width: 0.25in / 6.3mm Ball Lip Diameter: 0.19in / 4.8mm Ball ID: 0.12mm / 3mm Hole to Hole (Compressed): 2.55in / 65mm Hole to Hole (Uncompressed): 3.54in /90mm Overall Length: 3.9in / 99.3mm Travel Length: 0.59in / 15mm Shock Body OD: 0.49in / 12.6mm Shaft OD: 0.15in / 3.97mm Spring Body OD: 0.66in / 16.8mm Spring Body ID: 0.58in / 14.96mm Each Weight: 0.88oz / 25g (Z-D0061)