This steel gear is made of high rigidity metal, which is modified design for KST DS215MG digital servo. And it would be more harder than copper gear because of its strength and durability.<br><br>Features:<br>Easy to install.<br>Made of metal material.<br>Stronger and more durable.<br>High quality and light weight.<br>Suits for KST DS215MG digital servo.<br><br>Specifications:<br>Brand: KST<br>Item model: DS215MG steel gear<br>Material: Metal<br>Tip diameter: 10mm<br>Shaft diameter: 4mm<br>Height: 16mm<br>Suit for: KST DS215MG digital servo<br><br>Package Information:<br>Package size: 3 * 1.2 * 1cm / 1.2 * 0.5 * 0.4in<br>Package weight: 3g / 0.1oz<br>Adhesive tape package<br><br>Package List:<br>1 * KST DS215MG Servo Metal Steel Gear