VEVOR Concrete Knee Boards Stainless Steel, 30'' x 8'' Concrete Sliders, Knee Boards For Concrete, Concrete Knee Pads Moving Sliders, with Knee Pads & Board Straps for Cement and Concrete Finishing Effortless Operations Dual-Directional Stability Adjustable Straps Premium Materials Wide Applications Lightweight and Portable Main Board Thickness: 0.05in / 1.2mm,Product Dimensions (LxWxH): 29.45x8.03x5in / 748x204x127mm,Model: LXXGB-30*8,Title: Product Parameters,Quantity: 2pcs,Net Weight: 14.11lb / 6.4kg (including all accessories)