Carefree DG1440042 Awning Fabric Made of long lasting heavy duty vinyl, nylon webbing is sewn into the fabric around the polycord that slides into the awning rail. This extra reinforcement prevents the canopy from ripping or tearing at the seam due to wind flapping or pooling. This replacement canopy has a 42" Extension-if your room does not extend a full 42" you can still use this Universal replacement fabric just leave the excess fabric rolled up on the awning roller-tube. Length refers to the actual cut length of the fabric. Order the appropriate length for your specific awning. Note: you will need the length of the actual fabric you are replacing to order. Bead sizes are 1/4" on one end (awning rail-standard) & 5/32" at the other end (awning roller tube). Ships rolled in a tube, with the beads (polycords) pre-installed. Instructions are included. Installation hint: let the farbic warm up in the sun a while for easier installation. Warning: Replacing your awning fabric will require working with the pre-wound spring tension in the roll bar. Failure to exercise care and/or failure to follow the manufacturers replacement instructions can result in personal injury and/or property damage.