Qty (2) 10mm Nylon End Lift Supports 18" Extended x 55lbs Struts Gas This listing includes 2 Lift Supports for Multi Purpose Applications. Extended Length from Center Mount to Center Mount is 18.00 in. High Quality Supports, designed to last, to OEM Standards. Displayed shipping rate apply to the contiguous 48 States only. Additional surcharge applies to PUERTO RICO, HAWAII, ALASKA & OTHER US TERRITORIES.. Interchangable with the following OEM Numbers: SE180P55