Digital Servo JX PDI-6221MG Metal Gear core High Torque 20KG Waterproof for RC High performance digital standard servo High-precision aluminium gears with hard anodizing Specifications: Item:PDI-6221MG 20KG Large Torque Digital Standard Servo Degree: 120 Dead band: 2?s Working frequence: 1520?s / 330hz Operating Speed (4.8V): 0.18 sec/60 Operating Speed (6V): 0.16 sec/60 Stall Torque (4.8V): 17.25 kg.cm (239.55oz/in) Stall Torque (6V): 20.32 kg-cm (281.89 oz/in) Dimensions: 40.5X20.2X38mm /1.59 X0.80X49 in Weight: 62 g (2.18oz) Connector Wire Length: JR 265 mm (10.43in) Bearing: 2BB Usage:For RC Models Features: CNC aluminium middle Shel Dual ball bearings Package Included: 1set x Digital Servo JX PDI-6221MG Metal Gear core High Torque 20KG Waterproof for RC Check out our other items! Check out our Hown Store Shipping Policies: We ship to the Lower 48 States only (Does NOT include Hawaii or Alaska) We cannot ship to PO Boxes/APO's We cannot combine shipping. No Local Pickup. All items will be shipped directly to you from our warehouses within 1-2 business days. Most items are delivered within 3-5 business days, however, please allow 3-9 business days. All items are in stock when they are listed. Inventory is tracked and updated regularly. However, if demand exceeds our supply, we will give the customer the following options: Full refund. Have the item back ordered and shipped when it becomes available. We will offer other items in similar style and quality. Your bid / purchase of the item implies you agree to this policy. If you have a question about a product not otherwise answered in the item description, please contact us via messages first and allow us the opportunity to help you and be sure we have what you're looking for. Exchange / Return Policy: Your satisfaction is guaranteed! If for any reason you are unhappy with your item, just return it within 30 days for a full refund, minus shipping cost. Please contact us prior to initiating a return so that we can issue you a refund authorization. We accept returns under the condition that it does not open the packaging has not been damaged merchandise. The Free Return item must be in the same condition that as shipped to the buyer. We have money back warranty program and after sale service. Payment Policy We require Immediate Payment. Must be an authorized address.