Organize, insulate, and protect your electrical and electronic projects with this essential toolkit. Ideal for DIY repairs, prototyping, automotive work, and crafts, this polyolefin heat shrink tubing provides reliable electrical insulation, strain relief, and abrasion resistance. The assortment covers the most common sizes needed for everything from small gauge wires to battery packs and cable bundles.

Key Features & Benefits

Extensive 328-Piece Assortment: Covers a wide range of applications with 7 different diameters and 9 distinct colors for both functional and organizational use.
Premium Polyolefin Material: Features a 2:1 shrink ratio with a flame-retardant rating (UL VW-1 certified), providing durable, long-lasting protection.
Excellent Insulation & Seal: Creates a waterproof, dustproof, and corrosion-resistant barrier when properly applied, safeguarding connections from the environment.
Color-Coded Organization: Includes black, red, blue, yellow, green, white, clear, and often two-tone striped variations for easy wire identification and professional-looking results.
Quick & Easy Application: Shrinks rapidly and uniformly with a heat gun, lighter (with care), or other heat source, forming a tight, custom fit.

Technical Specifications

Material: Radiation-Crosslinked Polyolefin
Shrink Ratio: 2:1 (Shrinks to approximately ½ its supplied diameter)
Operating Temperature: -55°C to +125°C
Flame Rating: UL Recognized VW-1 (Flame Retardant)
Standard Colors: Black, Red, Blue, Yellow, Green, White, Clear, Red/Black Stripe, Yellow/Green Stripe (Exact colors may vary slightly by batch).
Supplied Diameter Range: Typically from 0.8mm (1/32″) to 12.7mm (1/2″) – See detailed size chart for exact kit contents.
Length per Piece: ~ 40mm – 60mm (varies by kit)
120×x×1×40mm (yellow, black, orange, green)
60PCX×2×40mm (yellow, black, orange, blue)
32×x×3×40mm (yellow, black, orange, green)
32×x×4×40mm (yellow, black, orange, blue)
32×x×6×40mm (yellow, black, orange, green)
20PCS×Φ8×80mm (yellow, black, orange, blue)
16PCS×Φ10×80mm (yellow, black, orange, green)
16PCS×Φ14×80mm (yellow, black, orange, blue