100% brand new and high quality Features: High quality e arphone memory foam built-in full black sound guide tube by reducing low frequency noise shielding; 5mm equivalent to the T400 standard stretch the elastic around the catheter about ± 0.5mm. Name: Noise memory foam in ear earphone earbud tips Specifications: 5mm Specifications: Color: Red blue black Material: High-quality Medical Silicone E ar tips Applicable Products: In-Ear Earphones Outside diameter:11mm Function: noise reduction enhance the headset to wear comfort and enhance the headset bass texture. size:1.05x1.3x1.3cm(0.4x0.5x0.5in) Notes: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors the picture may not reflect the actual color of the item. Thank you! Package Included: 1x 1pair(2 pcs)earplug