High quality material: made of high quality polypropylene (PP), keep fresh food for a longer time and keep the air and humidity to prevent your fried potatoes, snacks and cereals from getting their time. Four sizes: 12, 12, 12, 12, 5 cm, 18.5 cm, 22.5 cm, 29.5 cm, suitable for most bags. There are 8 pieces in each size. There are three different colors of support for bread bags: pink, blue and green. Different sizes are coded by colors, to meet your different needs. Easy to use: Tour them to seal these snacks without worrying about spilling. Suitable for freezer and dishwasher. Designed to store it in the drawers without sacrificing the space of the drawers.