HD Shark Sand SpikeThe HD Shark Spike is designed by Deerfield Fabrication and Coastal Worldwide for big game fishing!!! Standing at 59. 5 tall with 1. 75 x 1 4 thick 6061 structural aluminum angle. This spike has a 12 long 2. 25 OD upper tube with a 1. 5 ID pvc insert with a 1 4 stainless steel bolt in the bottom! The 1 4 thick welded tab on the front is an anchor point that be utilized to leash to your harness while fighting the BIG one!!! All 6061 aluminum