Based on the original Dravtech design, the Dlux Big Bore shocks have come a long way. *Sold in pairs* (two complete shocks, unassembled. Purchase quantity two for each vehicle. Ultra-short: Extended length (eye to eye): 78.5mm approx. (without optional internal spacer). Collapsed length (eye to eye): 62.75mm approx. (without optional internal spacer). Shock Travel: 15.75mm approx. (without optional internal spacer) Long: Measures approx 112mm eye-to-eye with 31mm travel Includes everything you need:- Rod ends- Caps with rod end mod- Lathed down shock body- Springs- No pre load shock cups- Orings and seals- Titanium shock shafts*No oil installed or included*The little O rings supplied are for adjusting spring pre load....YOU MUST USE THE NO PRELOAD O-RINGS ON THE SHOCKS SO THE SPRING HAS SOME PRE LOAD.One video explaining the shocks:https://youtu.be/YHIZtMglRhE?si=Le9iMIQzhhl58EI4