Photo 1 of uxcell 4Pcs M10 x 20mm Star Knobs, Plastic Hex Shaped Clamping Knob Screw Hand Tightening Replacement Knob for Umbrella Base Replacement knob

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Photo 1 of uxcell 4Pcs M10 x 20mm Star Knobs, Plastic Hex Shaped Clamping Knob Screw Hand Tightening Replacement Knob for Umbrella Base Replacement knobPhoto 2 of uxcell 4Pcs M10 x 20mm Star Knobs, Plastic Hex Shaped Clamping Knob Screw Hand Tightening Replacement Knob for Umbrella Base Replacement knob