Main features:
  Designed for scale and trail trucks.
  Real working piggyback operations.
  Fast and Easy to change the shock setup without disassembling.
  Sophisticated setup by simple use of piggyback adjustable valve.
  Anodized aluminum parts.
  CNC machined delrin shock spring adjust nut.
  CNC machined aluminum parts for the durability.
  CNC machined aluminum shock cartridge.
  Various hole type delrin shock pistons.(2,3,4holes)
  3.5mm thick shock shafts.
  Dual O-Ring sealed into the shock cartridge for preventing leak of oil.

What´s included:
  CNC machined & silver anodized aluminum shock bodies, piggyback bodies, shock cartridges
  Lower shock ends include red anodized aluminum balls.
  Delrin shock spring adjust nut x 2
  3.5mm thick shock shaft x 2
  Shock spring x 2
  Bottle of shock oil x 1
  All necessary hardware to finish the shocks
  Assembly instructions x 1

Specs:
  Length (mounting hole to hole): 100mm
  Shock body diameter: 11mm
  Shock spring diamenter: 15mm
  Shock spring length: 54mm
  Full shaft travel range: 31mm
  Shock shaft diameter: 3.5mm