Features: brand new and high quality. High voice coil, sound film components with right and left taking wires. Lightweight and portable. As tweeter speakers accessory. Tip: Since the voice coil is made of silk film, it deforms when pressed on the front side, and you can recover by pressing it on the back.This does not affect the use. If you mind, don'for t add to cart. Specifications: Voice coil DCR: 5.4 4.1-8 can be used. Material; Tetoron Color: Black Szie: (approx) 20mm sound film size: Outer diameter 29mm/secondary outer diameter 26mm/full height: 5mm 20mm voice coil size: Inner diameter: 20mm/ height: 4.5mm/ roll width: 1.6mm 25mm sound film size: Outer diameter 38mm/secondary outer diameter 37mm/full height: 7mm 25mm voice coil size: Inner diameter: 25.4mm/ height: 5mm/ roll width: 2.3mm Quantity: 1 Set(2Pcs) (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (No retail package) 2Pcs X Tweeters Diaphragm Voice Coil