Features: *Double-bayonet Shielded Magnetic Ring:Break through the new model of industrial design, this product features an upgraded double-bayonet shielded magnetic ring. *Improved Audio and Video Quality:The double-control snap magnetic ring can not only reduce signal interference but also enhance signal transmission, resulting in improved audio and video quality. *Convenient Snap-on Design:Equipped with a spring plate, the snap-on magnetic ring allows for easy installation without worrying about locking the wire. The shell of the ring is wear-resistant, corrosion-resistant, and can withstand high temperatures. *Multiple Size Options:This product is available in various sizes including 3.5mm, 5mm, 7mm, 9mm, and 13mm, ensuring compatibility with different devices and wires. *Package Content:Each package contains 5 pieces of magnetic rings, providing ample quantity for your needs without additional purchases. Specifications: *Part Name:Anti-Interference Magnetic Ring *Material:Nickel Zinc Ferrite *Size:Approx.3.5mm,5mm,7mm,9mm,13mm(Overall Length*Overall Dia.*Core Dia.) 3.5mm:25.5*13*3.5mm 5mm:25.5*13*5mm 7mm:30*16*7mm 9mm:35*19*9mm 13mm:36*23*13mm *Color:Black Package Content: 5 * Magnetic Rings Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. 5Ps Demagnetising Filter Noise Suppressor Emi Rfi Anti-Interference Magnetic Ring Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. If you have any questions, please feel free to contact us, we will solve it for you.