The spring is strong enough - Made of stainless steel, won't rust even in the fridge and freezer!! Much better grip than plastic clips Keeps Food - Effective in tarnishing closed bags: chips, sugar, food bags, crisps, bread, coffee bags, etc. Easy to Open and Remove - Fold and fasten for easy use, used to seal food bags. Simple and versatile way to keep food fresher for longer The uses are many - cooking, drawing, eating. You can combine them with magnets, sticky pads and other adhesive materials for even more uses Package Content: C 10 * Metal clips, keep bags closed and airtight Size: see the picture size