Gray, Chinese made, 4 mm diameter paper-wrapped black powder fuse. Burns at about 1/2 second to 3 seconds per meter.
Gives and takes fire without priming. Throws a tremendous amount of fire. Makes a very visible burning fuse, useful in movies and special effects filming. Each roll of super-fast paper fuse is 3 strands of "black match" or "paper firecracker fuse" wrapped in thin paper which is easily removed. A shippable replacement for quickmatch.