These come in a variety of sizes and pack down into around 1/3 of their size, available in silver, gold, white dual sided I typically carry a pair of 10” a 20” and a 38” in the back of the car. The smaller units are ideal for ad hock use in portrait pictures but they are also very useful when taking closeup nature pictures using natural light to remove shadows or more commonly lighting shady areas. Watch them in the wind though they make great kites.