1.Flexible and easy to use.Perfect match with the car 2. and nice qulity, to use. 3.Built to quality control standards.Not easy to damage, long service life 4.Stable performance, high reliability.a perfect replacement for your old 5.Made of high quality material, for use. Type Name:Car Front Air Helper Spring Kit Condition:100% Fitment Type: Direct Replacement Install Placement on Vehicle: Front Part Number: SSF-111-47 SSF11147 Fitment: Compatible with the following vehicles: For Super Duty Cabela's 2009-2010 Super Duty FX4 2008-2009 Super Duty Edition 2005-2010 Super Duty Limited 2018-2020 Super Duty 2013-2020 Super Duty 2011-2012 Super Duty (submodel: Ranch, Lariat, Limited, , XL, ) 2021 Super Duty (submodel: Ranch, Lariat, XL, ) 2005-2010, 2013-2020 Super Duty (submodel: Ranch, Lariat, Limited, , XL, ) 2021 Super Duty (submodel: Limited, ) 2018-2020 Super Duty (submodel: Ranch, Lariat, XL, ) 2005-2010, 2018-2020 Super Duty Edition 2005-2010 Super Duty FX4 2008-2009 Super Duty Cabela's 2009-2010 Super Duty 2011-2017 F-450 Super Duty 2018, 2020-2021 F-550 Super Duty 2019, 2021 Colour:Black Material:Metal + PU Package Contents: 2Pcs x Front Air Helper Spring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.