This is a highly effective fiber optic connectors with reasonable design and practical functions. This connector system removes any requirement for epoxy, adhesive or costly curing ovens, featuring installation quality, high reliability, and high success rate. Features -Color: Blue. -Material: Plastic. -Size: About 5.50X1.00X1.00cm/2.16X0.39X0.39in. -Insertion Loss: <=0.3dB. -Return Loss: &gt;50dB. -Length: 50mm. - installation, high success rate, easy operation, can repeatable use. - Integrated protection of the casing to withstand harsh indoor environment. - Specially designed to provide low insertion loss and back reflection, along with high precision and mechanical stability. - Unique design, installation without the need to inject glue, no grinding. - Embedded structure; easy to operation, low insertion loss, loss. Package list: 10 x Fiber Optic Connectors