A wooden mat with soft sides is used to patch small and medium-sized holes, access holes, portholes, etc.
Consists of two wooden panels and a layer of canvas between them. Shields consist of pine boards, primed with a red lead. Waterproof boiled sea canvas , padding is tarred oakum. The wooden mat is resistant to sea water, decay, sun rays, oil, fungi and corrosion. The warranty period is 12 months from the date of delivery to the vessel.
Size, m: 1 x 1; 0.5 x 0.5; 0.25 x 0.25.