The Tasker GTM 1608 Y Heat Shrink Sleeve Glue-less 2:1 Ratio 1.6mm x 1M in yellow color is used for insulation and protecting objects from moisture, dirt, dust, and other contaminants. It features a 2:1 shrink ratio, which is ideal for providing a tight seal over large objects. The 1.6mm thick construction and high tensile strength provide excellent abrasion and stress resistance, making this sleeve highly durable and able to withstand harsh environmental conditions. Additionally, it has a 1m length and an operating temperature range of -55°C to 125°C, making this sleeve suitable for a wide range of applications.