Upgrade your RC vehicle's performance with the RCmall 4-Pack Aluminum Servo Arm Horns, precision-engineered for 1/10 and 1/8 scale RC cars and crawlers. This set includes both single-arm and dual-arm configurations, available in 42mm, 37mm, and 35mm lengths, giving you the flexibility to find the perfect fit for your build. Each servo horn features a 25T spline interface and M3 threaded holes, ensuring a secure and reliable connection to your servo. Crafted from high-quality aluminum alloy with a striking red anodized finish, these servo arms offer superior strength and durability compared to standard plastic horns, helping to reduce flex and improve steering precision. The dual-arm versions come complete with stainless steel mounting screws for easy installation. Whether you're upgrading a rock crawler, buggy, or touring car, these metal servo arms are an essential performance enhancement for any serious RC enthusiast.