POSTS MADE OF RIBBED ALUMINIUM OF ROUND SECTION 90MM, DESIGNED TO ANCHOR TO THE GROUND BY METAL TINS -INCLUDED- RECESSED IN CONCRETE FOOTING. INCLUDES TENSIONING RATCHET TO BE ABLE TO TENSION THE CABLE OF THE NET THAT YOU WANT TO PLACE- THEY ARE MANUFACTURED SO THAT THE NET IS AT THE REGULATORY HEIGHT OF 1,07M. THE POSTS AND THE TINS ARE OF THE SAME SECTION THEREFORE THEY ARE JOINED BY A 50X50MM UNION PIECE THAT IS INSERTED 25CM IN ANOTHER TIN AND 25CM IN THE POST. IMPORTANT: THIS PRODUCT MUST ALWAYS BE ANCHORED TO THE GROUND.