The GBS380SGV is a heat-shrinkable, glueless polyolefin sleeve manufactured by BM Group. It has a 2:1 shrink ratio and an inner diameter of 38mm with a length of 1m. It is designed to provide superior insulation, environmental protection, and strain relief for wire splices and components. The heat-shrink sleeve is flame-resistant and able to shrink down to both one-half and two-thirds of its original diameter. It is also resistant to water, UV rays, and chemicals, making it ideal for use in harsh industrial and marine environments.