Part # Various
Breakthrough Balls
Excellent for plugging breakthrough holes, air decking or used as a stemming plug.
Easily slides/rolls down inclined holes
Made of strong, solid PP plastic
Held in place with caristrap
Replaces wood plugs
| Part # | Size | Weight |
| BBBTB4 | 3.5″ dia. Suits 4″ holes | 300g |
| BBBTB4.5 | 4″ dia. Suits 4.5″ holes | 440g |