Hi what size heat shrink do i need for 16mm2 and 35mm2 battery cable ?

this pack has the sizes you need.

Would a hair dryer work in lieu of a heat gun.

I think it will work as long as the hair dryer gets really hot ? It will take longer obviously.... But, any heat gun will work and they aren't very expensive.

Can it be used on shoe laces

That's an interesting question! It's certainly adhesive inside, and the cable joins I do seem robust, so I suspect the answer is yes, although it is quite stiff and will be slightly proud of the original lace so it may not sit on the shoe very vell. I presume that the adhesive is primarily to seal against water entry, so I don't know what the pull strength will be.

Is the width shown really the diameter or the width when flat, i.e is the largest one 25.4mm (1") diameter or 16mm (0.6") diameter?

Width when its unshrunk very good heat shrink product worth getting

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🔥 Seal it tight, fix it right! 🛠️

VERSATILE SIZE RANGE - Includes 7 commonly used diameters, perfect for any wire repair or insulation project.
ADHESIVE LINED DUAL WALL - Inner glue activates with heat to lock moisture and contaminants out, while outer wall resists abrasion.
PRECISION 3 1 SHRINK RATIO - Ensures a snug, professional-grade seal that outperforms standard 2:1 tubing.
READY TO USE PRECUT LENGTHS - Each 3.5" piece saves time and hassle—just slide on and heat for instant protection.
INDUSTRIAL STRENGTH SAFETY - Rated for 600V, CA Prop 65 compliant, ideal for marine, traction, and electrical applications.

The WirefyHeat Shrink Tubing Kit offers 180 precut black polyolefin tubes with a superior 3:1 shrink ratio and adhesive-lined dual walls for durable, moisture-resistant wire insulation. Covering 7 essential sizes, this industrial-grade kit is perfect for professional and DIY electrical repairs, rated up to 600 volts and compliant with safety standards.

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RM179

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Manufacturer	Wirefy
Part Number	Wirefy-DWT-180
Product Dimensions	19.51 x 3.51 x 0.1 cm; 263.5 g
Item model number	Wirefy-DWT-180
Size	Length: 3.5"
Colour	Black
Style	Black
Material	Polyolefin
Voltage	600 Volts
Item Package Quantity	180
Inside Diameter	0.75 Inches
Measurement System	English
Certification	CA Prop 65 Compliant
Usage	Thread repair, moisture protection, traction discharge, marine use
Batteries included?	No
Batteries Required?	No
Item Weight	264 g

WirefyHeat Shrink Tubing Kit 180 PCS - 3:1 Ratio Adhesive Lined, Wire Shrink Wrap Tubing - Industrial Heat-Shrink Tubing - Black - Shrink Wrap Tubing | Heat Shrink Wire Tubing

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