Strong shrinkage, can be better to wires.Shrinkage : 2:1 (will maximum shrink to 1/2 supplied diameter)Minimum Shrinkage Temp: +70CFull Shrinkage Temp: +110C maximumOperating Temperature: -55C to + 125C580PCS Heat shrink tube( x Supplied internal diameter x Single length Color)80pcs x 1.0mm x 38mm (1 1/2inch) . Black80pcs x 1.5mm x 38mm (1 1/2inch) . Yellow50pcs x 2.0mm x 38mm (1 1/2inch) . Blue50pcs x 2.0mm x 38mm (1 1/2inch) . Black30pcs x 2.5mm x 38mm (1 1/2inch) . Black30pcs x 3.0mm x 38mm (1 1/2inch) . Green30pcs x 3.0mm x 38mm (1 1/2inch). Clear30pcs x 3.5mm x 38mm (1 1/2inch) . Black40pcs x 4.0mm x 45mm (1 3/4inch) . Black30pcs x 4.0mm x 45mm(1 3/4inch). Red30pcs x 5.0mm x 45mm(1 3/4inch). Black20pcs x 6.0mm x 45mm (1 3/4inch) . Yellow20pcs x 8.0mm x 45mm (1 3/4inch) . Red20pcs x 10.0mm x 45mm (1 3/4inch). Blue20pcs x 10.0mm x 45mm (1 3/4inch). Black20pcs x 10.0mm x 45mm (1 3/4inch). ClearPlug Type: US Plug, it applies to Canada, , Mexico, Thailand, Taiwan, the , the Philippines and so on.Voltage: AC110VColour:Photo ColorMaterial:plasticPackage Contents:580 X Heat Shrink Tube1 X Hot Air Only the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.