1. Shrinkage rate of 3: 1 2. Excellent conductivity 3. High elasticity, the pipe is not easy to deform. 4. Excellent tensile strength and mechanical damage resistance 5. Excellent puncture resistance to that the outer layer of the crimping is not damaged. is a heat-shrinkable sleeve made of polyolefin and hot melt adhesive, which is used to protect the connection, strengthen the fixation and prevent vibration in rough environment. Good insulation protection, waterproof and anti-corrosion performance; The middle conductor is a high-purity copper tube with good electrical conductivity; Compared with the conventional connector, it has the advantages of durability, easy installation and low installation cost. Moisture-proof and waterproof Operating temperature range /Operating temperature range Operating temperature:-55 ~ 125 Starting shrinkage temperature: 80 Minimum shrinkage temperature: 130 Colour:As Shown Material:Polyolefin + Hot Melt Adhesive Size:19 x 13 x 3.6cm Package Contents: 1 x 260Pcs Assorted Heat Shrink Connectors Set 1 x Storage Box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.