Sealey-AP6372E-Heavy-Duty-Racking-Extension-Pk4-Mesh-Shelves-640kg-CapPer-Level-Sealey-AP6372E-Pack-includes-one-upright-end-frame-and-four-heavy-duty-mesh-shelves-Connects-to-Model-No-AP6372-AP6572-to-make-one-extra-bay-No-limit-to-the-number-of-bays-that-can-be-added-to-make-a-continuous-run-Sealey-AP6372E-Heavy-Duty-Racking-Extension-Pk4-Mesh-Shelves-640kg-CapPer-Level