The King 2.5 coilover shock is listed as an 8-inch, 2.5 series coilover shock with a piggyback reservoir and no springs included. The description identifies the shock body size, piggyback reservoir configuration, and absence of springs, indicating this unit is intended for use where a 2.5 series coilover shock with external reservoir and specified length is required.
King Shocks 8in 2.5 PR Coilover Shock Piggyback Reservoir w/o Springs