Description: brand new and high quality Feature: Made of high-quality material, non-toxic, tasteless, non-polluting. Insulation, heat insulation, cold resistance and exposure. Closed cell, good sound insulation. Resilience and high tensile strength, strong toughness, good shock/buffer performance. The dust cap is covered on the speaker to prevent dust. Various sizes optional to meet your different needs. Specifications: Item Type: Speaker Dust Cap Material: PP plastic Size: 74x15mm/2.9x0.5in, 85x21mm/3.3x0.8in, 55x13mm/2.1x0.5in, 65x14mm/2.5x0.5in, 45x9mm/1.7x0.3in, 47x11mm/1.8x0.4in, 42x9mm/1.6x0.3in, 38x8mm/1.4x0.3in, 65mm/2.5in, 95mm/3.7in(Optional) Color: Black Uses: speaker dustproof/beautiful decoration/phase correction Quantity: 2pcs Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm 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! Package Includes: 2 x Speaker Dust Cap (other accessories demo in the picture are not included!)