【Say Goodbye to Paper Jams and Loose Labels】Our stepless speed control knob syncs rewinding speed with printer output, keeping labels flat and taut to prevent jams, loose winding, and overstretching for smooth operation 【Effortless Coreless Rewinding—Save Cores and Time】Rewind directly without a core using the included 25mm attachment; after rewinding, pull the lever to release the roll instantly. Saves time and reduces core waste 【Smart Sensors for Fully Automatic Start/Stop Operation】Built‑in sensors monitor label flow and auto start/stop based on printing speed. The lift pauses on accumulation and resumes when clear, preventing pile‑ups and waste – set and forget 【Versatile Compatibility for All Your Label Needs】Compatible with 25mm and 40mm inner‑diameter cores (max length 12cm, width 15cm). Stable clamping works with standard or coreless rolls, handling various label types with ease 【Plug‑and‑Play Efficiency for Busy Workplaces】Includes rewinder, dual‑size core accessories, and 12V/1A power supply. Features a 130 RPM motor with low 60‑70MA no‑load current – plug and go. Ideal for post offices, retail, warehouses, and shipping for daily high‑speed label organization