Sanrio Hello Kitty Backpack - Tulip Hello Kitty School Backlpack (Minnie Size) California Prop 65 Warning. This product contains a chemical know to the state of California to cause cancer, birth defects or other reproductive harm. measures approx 9"W x10"H x 3.5"D padded, adjustable shoulder straps on the back, intelligently curved to fit your shoulder contour comfortably Officially licensed Hello Kitty school backpack