The 83251634 is a heat shrink sleeve manufactured by Lapp Kabel. It is a glueless two-to-one design, meaning that the sleeve has been reduced by 2: 1 along its entire length. This heat shrink sleeve is 12.7mm in diameter and is a bright yellow colour. It is made of polyolefine, a tough, flexible material that is resistant to flames, tears, and abrasions. This product is RoHS compliant and has UL E47717 approval. It can be used for mechanical protection and strain relief on cables and wires in industrial applications and is ideal for long-term outdoor applications.