This is the JBL 890 14 Pole Spear Slip Tip Available in 6mm or 7mm Threading. Hardened stainless steel 3 (76 mm) long by 5/16 (8 mm) diameter. Slip point with Rock Tip Point for penetration power. Detachable spear point and cable protect pole spear from damage by motion of large fish. Rear fixed barbs cause point to turn sideways after entry for secure hold on speared fish. Point attachment cable assists in removal of spear point. Overall Length 14 (356 mm). Tip Length 3 (76 mm). 6 mm or 7 mm Threaded End. Rock Point Tip. Fixed Barbs for Better Holding Power. For Large Fish. Slip tips add versatility to a pole spear. A slip tip allows the use of a pole spear with larger fish and those that will put up a bit of a fight without the worry of damaging your pole spear.