[Extreme Performance]Precision-engineered to remove dust, oil & debris from fiber connectors with superior efficiency. 500+ cleanings per cassette. ^^ [Quality Guaranteed] Premium ABS resin with anti-static cloth provides a consistent cleaning surface. The sliding dust door shields the surface when not in use, ensuring reliable performance. Sliding dust door protect the cleaning surface when not in use, ensuring reliable performance. ^^ [Versatile Compatibility] Works with all standard connectors: LC, SC, FC, ST, MU, MTP/MPO & DIN. Perfect for PC/UPC/APC polish types in singlemode/multimode applications. ^^ [Easy To Use] Simple push-and-clean mechanism without alcohol or chemicals. Compact design (125x85x35mm, 300g) ideal for field technicians, data centers & lab environments. ^^ [ Field Tested, Customer Approved] Our trueCABLE Fiber Optic Cassette cleaners have been field tested by real installers. TAA, and RoHS, compliant. Trusted by installers for reliable performance. Backed by our superior customer support.