1. Efficient Label Rewinding Rewinding diameter: 7 inches; width: 4 inches 10 adjustable speed levels Core size support: 1.49 in, 1.57 in, and 3 in Rewinding modes: twoway and automatic synchronous rewinding for versatile use 2. Advanced Speed Sensing Intelligent adjustment rod and gravity selfsensing technology to prevent deviation displacement Compatible with most printers Ensures seamless operation and automatically halts when printing stops 3. UserFriendly Knob Design Sidepositioned knob for easy speed adjustment from 1 to 10 gears Rewinding speed range: 0 to 100 rpm Realtime speed monitoring and adjustment for performance 4. Print Head Protection Selfadjusting pressure bar rises automatically to stop rewinding when printer speed is too fast Safeguards the print head from damage Use scenarios Warehouse and distribution centers: efficient postprint rewinding of labels while accommodating multiple core sizes, reducing setup time and jams Ondemand label production: quick speed changes to match printer performance for smallbatch runs volume ecommerce fulfillment: reliable barcode label rewinding with automatic synchronization and print head protection during fast print cycles