FeaturesAD 56382740 Polyurethane Rear Squeegee Kit for Nilfisk AdvanceFloor Scrubbers.Upgraded oil, chemical and abrasion resistantyellowish-clear polyurethane squeegee material.Urethane blades canbe used on abrasive surfaces such as unfinished concrete, asphalt andsidewalks.Urethane blades are also extremely oil resistant and will not curl like standard gum blades.This kit contains the innerslotted squeegee and the outer rear squeegee. SpecificationsThe rear blade measures 44-1/4 inch x 2-7/8 inch with 18 totalmounting holes. The front (inner) slotted blade measures 42-1/2inch x 2-5/8inch with 8 holes and 16 slots. Some Adgress o r modelsrequire slightly shorter blades (41-1/2inch rear squeegee wit ho ut Tholes on each end). Fits Nilfisk Advance Adgressor 32inch and35inch models (these include 3220D, 3220C, 3520D, 3520C - AXP andEcoFlex Models), BR 850S, BR850SC, BR850SC SBG, BR 855, and Advenger34inch models including Advenger 3400ST, 3400D ST, X3405D .