VARIETY OF SIZES: 240pcs Heat shrink tubing kit includes commonly used 7 sizes, 2 colors of marine grade heat shrink tubing,You can easily find the specifications you want.Also includes and a 392℉ heat shrink gun,making wiring projects and maintenance easy for you. 3:1 SHRINK RATIO：Heating for a few seconds can quickly shrink to 1/3 of the original diameter,and forming a tight seal,Provides a professional connection.Shrink temperature: 80 to 125°C. DUAL WALL TUBING AND ADHESIVE LINED: The outer wall brings wear resistance, corrosion resistance, toughness, breakage resistance, and flame retardancy. Simultaneously, the inner wall delivers exceptional waterproofing and insulation effects.When heated, the inner wall's adhesive melts and and seals the connection, creating waterproof and long-lasting insulation. HIGH QUALITY MINI HEAT GUN: The air outlet of the heat gun is made of stainless steel, which Will not be damaged by high temperature. The outer shell has a convex anti-slip design, and comfortable to hold. Designed with a metal bracket, it can be easily placed on the table without causing any objects to come into contact with the high-temperature air outlet.The heat gun is designed with a heat dissipation port at the tail, and the heat dissipation speed is fast. EASY TO USE：The heat shrink tubing kit is suitable for all wiring projects and repairs,Simply place the heat shrink tubing over the connection point and and heat it with a heat gun to shrink it.The kit with case is very convenient to store and carry. 1. Marine Shrink Tubing

(1) Color, size and quantity
Color: Red and Black
Size and quantity:
6pcs 3/4'' x 3.5'' , 3pcs each for red and black
6pcs 1/2'' x 3.5'' , 3pcs each for red and black
8pcs 3/8'' x 3.5'' , 4pcs each for red and black
20pcs 1/4'' x 1.8'' , 10pcs each for red and black
50pcs 3/16'' x 1.8'' , 25pcs each for red and black
70pcs 1/8'' x 1.8'' , 35pcs each for red and black
80pcs 3/32'' x 1.8'' , 40pcs each for red and black

(2)Material and performance
Texture: Cross-Linked Polyolefin
Fire resistance:VW-1
Voltage resistance: 600V
High temperature resistance:200℃
Shrink ratio:3:1
Minimum shrinkage temp: ≥70℃
Full shrinkage temp: ≥125℃
Operating temperature: -45℃~125℃
T ensile strength:≥12Mpa
Dielectric strength: 15KV/mm

(2) Applicability
Marine grade heat shrink Apply to reinforcement protection for vulnerable points of data lines, Insulation protection for wire and cable connection points and welding points, Repair of damaged insulation shells of wires, cables and data cables, cord repair etc.

< b> 2.Heat Gun
(1)Size: 8 13/16” x 1 45/64”
(2)Weight: 7 ounce
(3)Parameter performance:
Operating Voltage: 110V/120V
P roduct power: 300W
Temperature: ＞392℉
Rated Frequency: 50~60HZ

(4) Features
a. Stainless steel air outlet, high temperature resistance
b. The small-caliber air outlet can accurately bringing heat to the parts that need to be heated.
c. Two cooling ports at the rear, fast heat dissipation and long service life
d.38 inch power cord for easy operation.
e. portable heat gun: Lightweight and easy to carry.

(5) Applicability heat for Shrink Tubing , shrink wrap, electronics, phone repair, Wire and cable repair , Data line repair , paint ,embossing, candle making, epoxy resin and other art and craft making.

(6) Special attention items
a.Keep 5-6cm distance between the heat tool and item.
b.Do not heat product continuously for a long time to prevent overheating.
c. Please use the 110V/120V, 50-60HZ power supply to avoid overload and burning.