Description: Dual-walled design, polyolefin tubing in outside and hot melt adhesive in inside Allows visual inspection, prevents corrosion, and provided a waterproof seal Red connector for cable size 0.5-1.5m?----18-22 AWG (40PCS) Blue connector for cable size 1.5-2.5m?----16-14 AWG (40PCS) Yellow connector for cable size 4.0-6.0m?----12-10 AWG (20PCS) Package Includes: 100 Pieces Ternimals