Colour selection. For metal blinds, louvers and fabric curtains, the colour of the slats and the fabric will be selected from the swatch book supplied by Abba srl. As to the parts in extruded aluminium and metal sheets, the colour shall be chosen on the basis of the standard RAL colours specified in the offer. The choice of a special colour will attract a surcharge. For later orders or maintenance, Abba srl cannot guarantee colours will match or will be available from stock. Small differences in shades, glossiness or colour between the approved samples must be tolerated by the purchaser that undertakes to accept the supply. The fabric with directional weave might show differences in appearance due to the optimization of waste. Fabric folds and hems cannot be technically avoided and are not to be considered as faults. Joining or stitching to increase the size of the fabric is riskier for the formation of folds. Because of the edging, cutting and welding processes, assembly and testing, slight imperfections in the finishes of the products are possible and must be tolerated. In any case, any imperfections that are not visible at 3 meters must be accepted.