Do the products have to be maintained?We work with real leather. It naturally reacts to solar radiation and water. A wet piece of leather should be wiped off with a towel. The leather is now clean to the pores and particularly receptive. With a soft cloth leather care oil is now massaged into the still moist leather. Then let the piece of leather dry in a room with good air exchange - but never in the sun or over the heater - where the moisture evaporates and the oil penetrates into the pores. A leather that has been nourished in this way remains beautifully supple.