This is a Parkside 450-piece heat-shrink tubing set, model PSSS 450 A1, designed to isolate and protect electrical wires. [1, 2]
Set Components: The box includes 450 assorted tubes in various sizes and colors for versatile electrical repairs.
Protection Features: These tubes are designed to protect cables from water and provide insulation for bare or connected wires.
Specifications: The set is rated to work with electrical cables up to 600 V and can withstand temperatures up to 125°C