Max working length:440mm Ram travel:325mm Spring size:4~6-1/2 Feature:1,easy operating 2,quality control 3,good after service Spring CompressorModel: OY7003Capacity:1TMax.working lengtht:440mmRam travel:325mmN.W.:38KGG.W.:40KGPackage size:127cm*29cm*17cm20FT CNTR:468pcs Hydraulic Spring Compressor with CE