Feature: 1. Dual Channels: This electric bead threading machine features 2 channels design, operates simultaneously on two channels, significantly boosting productivity and working efficiency 2. Threading Range: With a threading capability for bead holes ranging from 3-17mm, it accommodates a wide variety of bead sizes, meeting more daily handcraft bead threading needs 3. USB Interface: Featuring a universal USB port, this threading device allows for easy plugging into any standard USB outlet or power banks, ensuring uninterrupted use anytime, anywhere 4. Switch Control: This bead threader is equipped with an on off switch, users can pause operations instantly, simplifying the usage process and eliminating the need for frequent unplugging 5. Versatile Use: Crafted from stainless steel, this automatic beading machine resists breaking and ensures a long service life; Suitable for diverse crafting in school, home, jewelry shop, and other places Specification: Item Type: Electric Bead Threader Material: Stainless Steel Size: Approx. 20.5 x 7.5 x 6cm / 8.1 x 3 x 2.4in Channel: 2 Channels Channel Length: Approx. 0-17cm / 0-6.7in Beading Hole Diameter: Approx. 3-17mm / 0.12-0.67in Power Supply: USB Interface, can connect power bank Application: For bead threading projects. Package List: 1 x Bead Threader 1 x Supply Cord 1 x Plug 2 x Beading Tools 6 x Beading Pins