a maritime eke or Kent type isosceles triangle, which could be a specialized tool used in the maritime field or for surveying purposes. The Kent type triangle is an isosceles right triangle commonly used in precision measurement or for technical drawing and engineering.
Kent type isosceles triangle: This is a type of measuring triangle with a right angle and two equal legs, often used in accurate measurements or for drawing right angles in engineering applications.
300mm: This indicates the size of each triangle, which is 300mm (30cm) in length.
Set of 2 pieces: This suggests that the product comes in a set containing 2 isosceles triangles.