Enhance 3D printingEnsure complete prints by accurately estimating remaining filament weight. Built-in bearings reduce extruder resistance, promoting smoother feeding and minimizing roller wear.Stability and aestheticsLarge-diameter roller design minimizes filament shaking for smoother printer operation. High-brightness digital tube display offers a cool and intuitive interface. Easy one-button touch operation, simple installation, and wide adaptability.Long-lasting performanceEquipped with a rechargeable battery for stable, long-term energy storage. Enjoy 3-6 months of standby on a single charge, providing consistent, reliable performance.Features Accurate Estimate filament remaining weight Built-in bearing, Smoother feeding Large-diameter roller design reduces shaking High-brightness digital tube display Simple operation, Easy installation Strong performance, Long lasting powerWhat’s in the box?1 x digital spool1 x mounting bracket