\nDe tensioner with spider hook are strong elastics for banners that ensure that banners hang tightly and firmly in aluminum frames. With a tube of 42 mm, there is 10 cm of tension space between the outside of the banner and the inside dimension of the frame.\nAn elastic for every type of cloth\nEven in strong winds, elastic bands provide banners to keep the canvas in place. Use a tensioner for each ring in the canvas, so that the tension of the canvas is the same everywhere. Do you prefer to be safe than sorry? Then place an extra tensioner on each corner.\n\n\n\n\n\nSpecifications of the elastics\n\nMaterial Polyester\nSize 20 cm\nColor Black\nspan space, With a 42 mm tube, there is 10 cm of tension between the outside of the fabric and the inside dimension of the frame.\n\n\n\n\t\t\t\t\n\n\t\t\t\t\t\n\n\t\t\n\t\t