Try 1 or get the larger quantities to save.  You won't be able to find these many places, especially at a better price.

2 inch fuse gives 4-5 second delay after lighting

2-3 second burn time @ 5000 °F

Igniters will be shipped UPS Ground.  Shipping is expensive if only buying the igniters.  Adding the igniter to other items will not be as costly.  It costs the same to ship 1 igntiter or 25 igniters.

Choose the larger packs if getting larger quantities.

Can be shipped to the continental US only.

The easiest way to light thermite.  Just place in the thermite, light the fuse, and step far away.  This can be lit with a regular lighter so there is no need for a blowtorch.  This will replace magnesium as the fuse for thermite.  An MSDS will be coming soon.  Store in a cool dry place away from heat sources or sparks.