Photo 1 of VEVOR 30'' x 8'' Concrete Knee Boards Slider Knee Boards Kneeler Board Stainless Steel Kneedboards Concrete Sliders Pair Moving Sliders w/Concrete Knee Pads & Board Straps for Concrete Finishing

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Photo 1 of VEVOR 30'' x 8'' Concrete Knee Boards Slider Knee Boards Kneeler Board Stainless Steel Kneedboards Concrete Sliders Pair Moving Sliders w/Concrete Knee Pads & Board Straps for Concrete FinishingPhoto 2 of VEVOR 30'' x 8'' Concrete Knee Boards Slider Knee Boards Kneeler Board Stainless Steel Kneedboards Concrete Sliders Pair Moving Sliders w/Concrete Knee Pads & Board Straps for Concrete Finishing