Item specifics: Material: Polyolefin Minimum shrinkage temperature: ±70 degC Maximum shrinkage temperature: max. ±110 degC Operating temperature: -55 degC to 125 degC Tensile strength: 10.4 MPa Insulation strength: 15 kV/mm Flame retardant: flame retardant Quantity:328Pcs This listing is for a factory boxed assortment of 328 pieces of Polyolefin Heat Shrink Tubing. This product has a 2:1 shrink ratio and is both UL CSA certified for up to 600V 125 Degree Centigrade. The Compact translucent storage plastic bag with molded catch to prevent spillage as well as compartments labeled with size makes this a handy item for the Technician or Hobbyist work bench or van. Note: The plastic box is NOT Included Contents are as follows: 120pcs x φ1.0 x 40mm Quantity x Supplied internal diameter x Single length 60pcs x φ2.0 x 40mm 32pcs x φ3.0 x 40mm 32pcs x φ4.0 x 40mm 32pcs x φ6.0 x 40mm 20pcs x φ8.0 x 80mm 16pcs x φ10.0 x 80mm 16pcs x φ14.0 x 80mm Package List: 1x 328Pcs8 sizes 2:1 Heat Shrink TubingBox NOT included