Using these blue swirl glass bottles is super easy. You can fill them with fresh flowers to brighten up your room, put scented sticks in them to add a lovely smell, or use them to store pens on your desk. When placing them, you can arrange a few together for a more dynamic look or put one in each room for a cohesive decor. As for maintenance, just use a soft cloth to gently wipe the bottles. Avoid using harsh chemicals as they might damage the glass. Also, be careful when moving them because they're made of glass and can break easily. Keep in mind that the color variations are natural in hand - blown glass, so each bottle is unique.