These lanterns are manufactured from a durable lightweight ABS construction with 360° bright white COB bulbs up to 260 lumens, plus sturdy metal handles for carrying or hanging. They are easy to operate, simply lift up to turn on then push down to turn off. They have a compact collapsible design for space saving & storage making them ideal for camping, trekking, fishing & emergencies. . Approx Medium Size: H120mm x Ø85mm (requires 3 x AA batteries, not supplied) . Approx Small Size: H95mm x Ø67mm (requires 3 x AAA batteries, not supplied) .