90° Transmission device: this transmission housing can achieve a 90° rotation, which is very suitable for car models or DIY projects that require certain for power transmission "Wear-resistant gearboxes": these gears are made of metal materials that are both wear-resistant and cost-effective. Ideal for startups or lovers of manual driving this to reduce costs Miniature design: this 0.2 meter worm gear is a miniature gear, perfect for projects with limited space or small equipment Multifunctional use: these gears can be applied in various DIY projects, including car models and other projects that require precise control or adjustment of speed and angles "Efficient deceleration": equipped with a 12 times deceleration device, which can efficiently reduce speed while increasing torque, which is important for car models or personal DIY projects that require deceleration and improved energy efficiency, Manufacturer: OSNIYAW