This assortment in a value pack is especially suitable for hobbyists.craftsmen.field service.service workshops.electronics technicians and laboratory needs. You will receive a 200-piece premium shrink tubing assortment (2 boxes of 100 parts each) in the shrink ratio 3:1 for an application range of 1.6 to 12.7 mm in the color black.With hot-melt inner adhesive: waterproof when overlapped correctly! .Thanks to the variety of sizes included.the heat shrink tubing sections can be used for insulation.protective wrapping of components.as bend protection.protection against corrosion.and repair of cables and wires and more. Material: PE.Shrink temperature (min.): 70 °C.Shrink temperature (max.): 120 °C.Operating temperature: -55 °C to +125 °C.Tensile strength (min.): 10.3 MPa.Dielectric strength 1.5 kV (30 sec.).Industrial grade. All hoses comply with RoHS directives. Further technical data on the components included are clearly printed on the inside of the covers.