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Brass Mast Track Retrofit Slider

Brass Slider for old Windsurfing Board Mast Track

If you have an older windsurfing board with an adjustable mast track, particularly an older Mistral board, this brass slider nut will allow you to use a modern mast base.  This brass nut fits under the edges of an older style mast track and allows you to attach a modern 1-bolt base to it.