This is a Yokomo "Long Type - Pink" Pro Shock Spring, and is intended for use with the Yokomo BD7 1/10 scale touring car. This shock spring is 6.5 coils of 1.5mm wire.
Yokomo Shock Spring Rates:
Black: 6.0 coils/1.4mm wire (YOKYS-1460L)
Blue: 5.75 coils/1.4mm wire (YOKYS-14575L)
Yellow: 5.5 coils/1.4mm wire (YOKYS-1455L)
Pink: 6.5 coils/1.5mm wire (YOKYS-1565L)
Green: 6.25 coils/1.5mm wire (YOKYS-15625L)
Orange: 6.0 coils/1.5mm wire (YOKYS-1560L)