Medium Omega Profile For Greenhouses 5.0m length x Base 25mm These omega profiles have the necessary measures for the construction of your greenhouse and achieve, through these and together with a polyethylene strip, to hold the meshes or plastics in position, allowing a easy to fix them in case of breakage or simple change due to season or deterioration. For purchases of less than 50 profiles, the bars are sent cut (2.5 m. Each) to lower the cost of transport. In any case, you can consult our commercial department. If you need to do a complete installation, in addition to the profiles, you would need BIG OMEGA SPLIT (to join the profiles, 2 per 5m profile) + MEDIUM OMEGA POLYETHYLENE STRIP (to block the plastic or mesh, 2 per 5m profile) + SCREWS M-8 x25 and NUT M-8 (4 units of each per Profile of 5m.) These items are listed above. IN OUR BLOG YOU CAN FIND VIDEOS AND PHOTOGRAPHS OF INSTALLATIONS OF THIS MATERIAL.