Fibre optic fusion splice protector sleeves are designed to restore environmental integrity, mechanical strength, and fibre optic transmission properties after fibre splicing. Features Durable. Restores mechanical strength. Restores environmental integrity. Restores fibre optic transmission. Specs OD Recovered: 2.5±0.2mm Length: 40±1mm Inner Tube Material: Ethylene Vinyl Acetate Outer Tube Material: Cross-linked Polyolefin Colour: Clear Stainless Steel Rod OD: 1.0±1mm Inner diameter 1.1mm Warranty 1 year limited warranty.