Miniature Design ": This 0.2-meter-long worm gear is a miniature designed gearboxes that is perfect for projects with limited space or requiring small equipment Wear resistant gearboxes ": This gearboxes is crafted from metal materials, which are both wear resistant and cost-effective For startups or manual driving enthusiasts, this is ideal to reduce costs 90 ° transmission device ": This transmission box can achieve 90 ° rotation, which is very suitable for car models or DIYer projects that require specific angles to transmit power Multi functional use: This gearboxes can be widely used in various DIYer projects, including car models and other projects that require precise control or of speed and angles Efficient deceleration ": It is equipped with a 12 fold deceleration device that can efficiently reduce speed while increasing torques, which is important for car models or personals DIYer projects that require deceleration and energy efficiency, Manufacturer: XIBEIDIANZI