This listing includes 1 pair of 8 mm stepper electronic starters. Each unit employs a 2phase, 4wire stepping configuration and features a copper gear with 9 teeth (9T). The gear has a 0.2 modulus and measures 8 mm by 8.2 mm. Key features 2phase, 4wire stepping design Copper gear with 9 teeth (9T) Gear modulus: 0.2 Gear size: 8 mm by 8.2 mm Material: Copper gear Package content: 1 pair Benefits Enables precise, repeatable motion in compact assemblies Small footprint suitable for tight spaces and lightweight equipment Durable copper gear provides smooth engagement and longevity Simple 2phase, 4wire configuration supports straightforward integration Attributes at a glance Type: Stepper electronic starter Quantity: 1 pair Gear: 9 teeth (9T), 0.2 modulus Gear material: Copper Gear dimensions: 8 mm x 8.2 mm Drive: 2phase, 4wire stepping Use cases Small hobby robotics or automation projects requiring compact stepping gear Miniature CNC, engraving, or positioning setups where a copper 9T gear is suitable Educational or prototype kits that demonstrate precise, lowprofile geardriven stepping mechanisms This description reflects the product's brand, specifications, model, and features as presented, without adding or omitting details.