Disposable Razors: Disposable razors come in two types. The kind that is completely disposable (handle and all), or the kind where you replace them with cartridges. These are permissible in carry-on luggage with the blade and replacement cartridges.
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Disposable razors, replacement blades, and electric razors can go in either your carry-on or checked baggage; if you have a safety or straight razor, you can pack it in your carry-on — but you must remove the blades first and pack them in one of your checked bags.
The blade must be removed prior to entering the screening checkpoint. TSA officers are not authorized to remove the blades from the holder. Any sharp objects in checked baggage should be sheathed or securely wrapped to prevent injury to baggage handlers and inspectors.
Safety Razors: Because the razor blades are so easy to remove, safety razors are not permitted in your carry-on luggage with the blade. They're fine to pack in your carry-on without the blade. The blades must be stored in your checked luggage.
Firearms, ammunition, and fireworks are prohibited, as are all knives and safety razors (including pocket knives and Swiss Army knives). Straight razors and replacement blades for straight razors are also not allowed. Most tools also cannot be packed in carry-on luggage, as they have the potential to cause harm.
Can You Bring Tweezers on a Plane? - Can You Bring Tweezers on a Plane? TSA considers tweezers to be completely safe, so they're allowed on planes. You can pack tweezers in hand or checked baggage without any packing restrictions.
Looking for a mid-flight manicure? Nail clippers, nail-trimming scissors and cuticle cutters are totally fine in your carry-on bag. But if the blades are over 6 cm in length, they will need to be packed inside your checked luggage (this same rule applies to small tools such as calipers and drill bits).
You can bring tweezers into the cabin, and scissors with rounded ends and blades less than 6cm long. Razor blades are only allowed in the cabin if they're set in plastic. Knives with a blade not exceeding 6cm can be taken on board. Other sharp objects are not allowed in the cabin.
Stick deodorant is fine in any size. Well, almost any size… Powders and crystals are good to go as well. Spray, Gel, Liquid, Cream, Pastes, and Roll-On deodorants need to be in containers no larger than 3.4 ounces and placed in a clear quart-sized baggie.
Explosives and flammable items, such as fireworks, gas, and aerosols. Poisonous and toxic substances, including pesticides and certain chemicals. Lithium batteries and other hazardous materials, as these can pose a safety risk if not handled properly.