VEVOR Handrails for Outdoor Steps, Fit 1 or 2 Steps Outdoor Stair Railing, Picket#1 Wrought Iron Handrail, Flexible Porch Railing, Black Transitional Handrails for Concrete Steps or Wooden Stairs
Hi buyer,
Thank you for your time to the mail.
With a 10mm drill bit, mounted on deck using self-tapping screws
Hope this helps.
Best wishes, Jennifer Customer Support