This new and improved drive wheel replaces the original drive wheel, which deteriorates over time. Enabling to to extend the life of you somfy electric luxaflex silhouette blinds -Please make sure you order the correct size to suit your blind tube, these are either a 100mm/75mm vane width or a 50mm vane width as the tube the motor sits within is a different size for both. This is for a 50mm vane blind a single piece
eBay