Because it is thin and hard after shrinkage, it is perfect for exterior repair of 18650 lithium ion battery. However, since the length also shrinks considerably, in the case of 18650, it required about 73 mm. If you have a small volume such as 5 m or 10 m it is better so we would like you to consider sales.
It is used for the exterior cover of the battery, so it is very thin and conforming shape after contraction is very good. Although there is a lifetime of six months, there is more durability, the display can give misunderstanding. Since 100 m is not used, if it is possible to lower the price with 10 m winding, it may be easier to purchase.
I bought it because the price is cheap but thinner than I thought it becomes hard after heat shrinkage and it will crack when bent. Because it is vulnerable to heat, if you heat it with a heat gun like a normal heat shrinkable tube it will quickly get torn. If you limit usage, the price may be good as it is cheap. Just saying that half a year of corresponding life expectancy is also a little concerned factor.