An extra 1 quart cooking cup for the Jetboil Sumo, Minimo, Flash, Zip, Personal Cooking System PCS, and Group Cooking System GCS. Perfect for two people using just one Jetboil stove. . . . . . This FluxRing enabled mug lets you save weight by sharing your burner base and fuel with friends. The window on cozy starts to turn color as the contents get warm. Included lid features a pour spout and strainer. Bottom cover doubles as a measuring cup and bowl. Compatible with Sumo, Minimo, Flash, Zip, and PCSGCS burners.