Tokico D-Spec shocks and struts are sold in sets of four.
Each Tokico D-Spec set includes a manual giving pointers on how to adjust the D-Spec as well as various suspension tuning tips.

Tokico D-Spec suspension kits will include four D-Spec shocks/struts and four sport lowering springs.

The capability of the D-Spec adjustable shock to be such a multi-use product, results from a sophisticated piston and valving design, combined with a unique variable-aperture bypass controlled by an adjustable slide valve.

Tokico D-Spec adjustments change both rebound and compression damping simultaneously. Between the hard and soft settings,

Tokico D-Spec are infinitely adjustable.