DURABLE MATERIAL - Using machine washable, High density and thick material to protect bags from tear-resistance.ULTRA LARGE CAPACITY - Measure 2734 per piece; This size is big enough for holding 3 loads of laundry for each, storage in college dorm or family use.EASY CLOSURE - There is a spring lock that slides down the drawstring to preventing spill of personal items.WHEN CAN WE USE IT? - You can also use them to storage your car detailing towels, sleeping bags, quilts and blankets pillows.VERSATILE: laundry bag and perfect helper on moving day.