Hot Racing adjustable length upper 4-link arms for the Vaterra Twin HammersFEATURES: - CNC machined aluminum construction, anodized black- Adjustable length in increments of 2.5mm- Includes 2.5mm and 5mm spacers- Adjustable length between ~105-125mm (stock is ~103mm)- included spacers allow length adjustments in 2.5m or 5mm incrementsYOU WILL RECEIVE: - Two (2) upper links with link ends- Four (4) plastic washers (help to lock link ends from twisting)- Four (4) 5mm collars- Eight (8) 2.5mm collars- Four (4) 16mm long set screws- Four (4) 18mm long set screws- Four (4) 20mm long set screwsREQUIREMENTS: - Installation on vehicle- Recommended to use a removable-type locking adhesive on screws threading into metal. This includes the setscrew used to adjust the link length. COMMENTS: - Replaces factory plastic Vaterra upper links from VTR234009description revised by: SN February 10, 2016