Winding is based on the technology of larger rollovers: 2 bearings with spheres of delrin on the drum and rotary trigger. All components are made of extremely durable polyarylamide. Maximum front stitch length 6.85 m, front stitch diameter 4-7 mm, maximum sail area 12.5 m2. Cylinder capacity 7 m at 5 mm lanes. For a ship length of 4-6 m. we supply a complete aluminum profile.