Consider this hold your Swiss Army hold. Use it like a mail slot and grip on the top or the sides. Hang it from one end and use a ring in the T-slot. Hang it from the other end and use an axe it the long slot.
 
HDPE (High Density Polyethylene)
High strength to density ratio
Extremely durable and strong
12" target is 1 inch thick
 
Extend the life of your targets, holds and slots with HDPE. It's dense, durable and can high impact sends. The only hold that will survive an apocalypse.