Have a Walker Bay 8 or 10 foot boat and need a stable post for canvas cover? This do-hicky presses into the middle seat where the centerboard would normally go and provides a boat cover support mount. This mount keeps the support pole in place while you put the cover on.

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https://www.amazon.com/gp/product/B07VG6F349/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1