... 3.Conform to RoHS, SGS 3:1 Flame-Retardant Heat shrink tubeFlexible, flame-retardant, high-shrink-ratio polyolefin tubingApplicationKOSOO K-2 ... Features/Benefits·Shrink ratio: 3:1.·Flexible, highly flame-retardant.·Excellent physical, chemical and electrical properties and high ... upon request.Ordering descriptionSpecify product type, size (mm or inch) and color. 3:1 Flame-Retardant Heat shrink tube