Please Make sure helm post dimension from centerline to centerline is 9-1/2" before purchase. If your post are a not the 9-1/2" spacing please contact me at leo@protdesign.net for a custom spaced cup holder.
I used this for 6 years on the very boat you see in the video and it held up incredibly well in the harsh marine environment. We print these out of ASA material a durable UV resistant durable plastic.