Ziploc brand Twist ’n Loc Containers block out air and lock in freshness. Plus, the lids on these handy containers twist on like a jar and have a leak-resistant seal—so you don't have to worry about spills or leaks! DIRECTIONS FOR USE: Use as directed in microwave, freezer, and microwave. USES: For food storage of leftover meals, on the go snacking, fruit, vegetables, nuts, crackers, and more. For small personal and household item storage of makeup, craft supplies, office supplies, and more. WARNINGS: To prevent risk of personal injury or property damage: wash before using. If using dishwasher, place in top rack. Unscrew or remove lid before microwaving. Container may be hot during microwaving. Handle with care. Allow contents of container to cool before lid is screwed down tight. Do not shake contents when hot. Do not use in conventional oven, under browning elements, or on stovetop. INGREDIENTS: Polypropylene and Dye. SCJ Formula # 35*10582, 35*14861 Gender: unisex.