Features: Insulated post, external parts insulated Suitable for 4mm banana plugs, spade terminals or bare wire Easy installation with screws locking and easy to use Specifications: Surface: Nickel-plated Color: Red (5 Pcs), Black (5 Pcs), Silver Tone Length: 33mm/1.3" Quantity: 10 Pcs/1 Set Note: Please allow 1-3mm 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 Contents: 10 x Female Banana Plug Socket Connector About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.