The Boulder 100 Briefcase is constructed with durable tempered glass and a robust aluminum frame for long-lasting use. Its hinged design and included canvas bag make it convenient to carry, allowing you to keep your devices charged while on the go. With a total of 100 Watts and two 50-Watt panels (14-21.5V) linked together and connected by a hinge, this briefcase also features an aluminum frame with added corner protection. The protective canvas bag is perfect for transport and carrying.