Did I hear you say "If only I had room in my bag for one more thing..."? This pack contains instructions and Quiltsmart printed interfacing panels to make 1 Mondo Bag. Perfectly-matched seams, easy construction, roomy, comfortable bag using Quiltsmart grid interfacing technique. Bag bottom is about 10" square with 17" tall sides. FIRST TIME USERS - Purchase the "Pack" first which includes instructions and interfacing! Panels are available separately for more bags.