Specifications: OOTDTY   brand new and high quality Ferrite core Outer Diameter: 3.5mm/0.14" Inner Diameter: 1.5mm/0.059" Height: 5mm/0.2" Quantity: 100 Pcs/1 Set Note: Please allow 0-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package Includes: 100 x Ferrite Sleeve Cores