Rated voltage:3000VInner Dia: 3/32inch /2.4mm (before shrink), 0.8mm (after shrink)Begining shrinking temperature:80C, Completely shrinking temperature: 120CShrinking ratio: 3:1Heating tool: hot air .Compliant: the quality of RoHS, UL and CSA Certified.Feasture: dual-wall, adhesive lined, waterproof, insulation, soft, stable performance, low temperature shrinkage, shrinking fast, etc. Applicance: used for Appliance/Auto Electric Wire Cable Harness Wraping.