Abstract: The present invention discloses a novel design of the height-adjustable travel pillow that provides head cushioning, and lateral support and stays in place when the user is in a seated position or semi-reclined. The travel pillow includes an inflatable system in its core which allows the user to achieve the desired thickness level to ensure maximum comfort and rest to the user.

Abstract: A double-paper-roll printing device includes an installation frame for installing the following components and paper rolls. A first paper roll and a second paper roll are installed on the installation frame through a paper roll supporting shaft. Paper tapes of the first paper roll and the second paper roll are selectively fed to a printing component through paper passages. The first paper roll and the second paper roll are selectively fed to the printing component through a first paper passage and a second paper passage that are mutually independent. The first paper passage and the second paper passage are mutually superposed. The tail end of the first paper passage and the tail end of the second paper passage form an intersecting end, and paper tape heads of the paper rolls enter the printing component through the intersecting end.

Abstract: A double-paper-roll printing device includes an installation frame for installing the following components and paper rolls. A first paper roll and a second paper roll are installed on the installation frame through a paper roll supporting shaft. Paper tapes of the first paper roll and the second paper roll are selectively fed to a printing component through paper passages. The first paper roll and the second paper roll are selectively fed to the printing component through a first paper passage and a second paper passage that are mutually independent. The first paper passage and the second paper passage are mutually superposed. The tail end of the first paper passage and the tail end of the second paper passage form an intersecting end, and paper tape heads of the paper rolls enter the printing component through the intersecting end.

Abstract: The present invention relates to a lighter filled with gas fuel, particularly to a double-flame lighter. It comprises two flame assemblies, i.e., a first flame assembly and a second flame assembly, disposed on a housing, igniters, a gas tank provided with a gas outlet valve, and an ignition button. There are two igniters, and a gas nozzle of the gas outlet valve is a double-headed gas nozzle whose two gas outlet pipes are communicated with the first flame assembly and the second flame assembly respectively. A two-way spring board is disposed on the gas outlet valve, and a two-way movable ignition button that is actuated with the igniters and the two-way spring board is disposed on the housing. There is a switch mechanism disposed between the ignition button and the gas outlet pipe for controlling closing or opening of the gas outlet pipe. The invention has the advantages of simple structure with convenient operation and safety.