Field Optics Research Kahuna Survival Grip – Quickly converts any removable leg of the ProMAX or BT Precision series tripods into world class Trekking Poles.  Stored in the secret cavity in the grip is a very handy 14 piece survival kit that includes:
3m para cord
5m fishing line
3 sinkers
3 fish hooks
3 matches
1 strike pad
3 Band-Aids
1 storage tube

The secret cavity in the trek grip is .64″ dia x 4.0″ deep. 

Made of formed cork for soft comfort with adjustable lanyard for added strength and control. Included adapter used to connect grip to pole.

Sold as an individual grip.

Connects with 3/8-16 thread to any removable tripod leg or trek grip.