This listing is for one set of brand new Brian Crower Single Valve Springs for Toyota 2GR-FE 3.5L engines 

Included = 24 Valve Springs 
Pressure @ Seat = 1.350" @ 76 lbs
Pressure @ Open = 0.950" @ 180 lbs
Coil Bind = 0.860"
Net Cam Lift = 0.430" / 10.92mm

Use with stock Retainers or Brian Crower Titanium Retainers BC2220-24 (Not Included) 

Part Number = BC1260-24