This is the Ultra Shock Set from Traxxas for the Nitro 4-Tec 3.3
Plastic shock body construction, gray in color
Steel chrome-plated shock shafts and white shock shafts
INCLUDES: Two shock bodies
Shock Accessory parts tree containing preload spacers, pistons
and shock mounting bushings
Two White Shock Springs (TRAC4265)
Two Chrome Plated Shock Springs, Soft tension
Two replacment shock shafts (TRAC4262)
One bottle of silicone shock oil (TRAC5666)
REQUIRES: Assembly and installation onto vehicle
SPECS: Length: 1.97" (50mm) to 2.17" (55mm)
Shock Body diameter: .5" (12.3mm)
BOX DIMENSIONS: 5.75" W. X 1.00" H. X 10.00" L.
BOX WEIGHT: .19 LBS.