UTK Book Refill (Pack of 4)

The UTK™ Book is a two-part device that is utilized in the construction of pushing charges. It is made up of a 1/2" x 4" x 8" rubber slab and 1/2" of our proprietary UTK™ Gel. This combination makes it an extremely effective pushing charge that is highly portable, easy to build, lightweight, melt-free, and can be easily hung.