this set is aimed at racers looking to fine-tune handling

clutch shoes and meshes with the main gear

Barrel and Columnar

giving long locomotives and passenger cars a smooth

INCLUDES: (6) Cap Head Hex Socket Screws M3x55mm

HPI Racing 75116 Ball Stud 4.3x13mm RS4 Pro 4 (4pcs) Cup Racer / Brama 10B Trophy Parts this set is aimed atHPI Racing 75116 Ball Stud 4. 3x13mm RS4 Pro 4 (4pcs) Cup Racer Brama 10B This is a package of 4. 3X13mm Ball Studs for the HPI RS4 PRO4. FEATURES: Black steel construction Opening for a 2mm allen wrench INCLUDES: Four ball studs REQUIRES: A 2mm allen wrench (GPMR8011) to install the ball studs SPECS: Length: 13mm (1 2") Diameter ball: 4. 3mm (3 16")