The wind flags are made of polyester fabric, ideal for outdoor use. The weight of the fabric is according to specifications 150 g/m². The wind flags can be easily replaced, you just need to open the carabiner and switch them out.
Please have in mind, that the used fabric is intended for outdoor use, but that neon colors can deteriorate when left in heavy radiation for prolonged time periods. We recommend to just take the flags and the flag holders from the ground spikes and store them indoors when not in use. That way, the colors will stay bright for years.