Using this Siku 4-Piece Ambulance Set is easy and fun. Just pick up the ambulances and start playing. Let your imagination run wild and create all kinds of rescue scenarios. For kids, it's a great way to develop hand - eye coordination. When it comes to safety, make sure to keep small parts away from children under 3 as they might pose a choking hazard. To maintain the set, simply wipe it with a soft, dry cloth every now and then. Avoid using harsh chemicals or submerging it in water as this could damage the die - cast metal and plastic components. With proper care, your Siku ambulance set will last a long time and provide endless entertainment.