Hello, this is Sugatsune Industrial! We are currently offering a Power Assist Catalog featuring hinges and stays that assist with opening and closing. It's a useful resource for designing large doors and covers! 【Features of Power Assist Products】 ● Reduces the burden of opening heavy covers by up to 80%! *Values may vary depending on the model and installation position. ● Prevents the impact of slamming shut, avoiding pinched fingers. *Only for products with built-in dampers. ● Provides assistance through spring or gas resistance. No power source is required. ● A dedicated selection tool is available online. You can feel confident even if it's your first design! ★ Free catalog shipping available ★ Please feel free to apply through the "Contact Us" form. A digest version PDF is also available. ★ Contents included ★ ■ Power Assist Hinges ■ Power Assist Stays ■ Lift Assist ■ Gas Springs