The OXO Good Grips Prep & Go Sandwich Container is the ideal solution for taking your lunch anywhere you go – even if it’s to your back deck. It’s sized perfectly to hold store-bought sandwich bread—even when you pile a tall stack of lunch meat and veggies between the slices. Use it to pack up tuna sandwiches, BLTs, classic peanut butter and jelly, and more. The leakproof lid features a silicone gasket and two locking clips, so you don’t have to worry about that juicy tomato slice making a mess in your bag. The lid also has a see-through window to help you spot your lunch in a crowded fridge. And although it looks like a sleek, ceramic container, it’s actually a much lighter BPA-free alternative to single-use plastic. Dishwasher safe. For a secure seal, press firmly in the middle of the lid, then engage the latches; you'll hear air being released as you press the lid down To replace the gasket, press the four corners down, then press the rest of the gasket into place, ensuring the gasket is pressed down fully and evenly