This is the Koah Spearguna Euro Long Stock Series Rear Handle Features: 4in butt extension for easier loading (measured from front of mech to tip of muzzle) 90LS 110LS 120LS Teak laminated stock Poured glass filled epoxy enclosed track (2) 5/8 Bands 9/32 Shaft solid lead ballasted Koah Ergonomic Euro Grip Double wrap #300 mono Model SHAFT BAND EUR90LS 52" 9/32 (2) 24" EUR110LS 60" 9/32 (2) 28" EUR120LS 64" 9/32 (2) 30" The Koah Euro LS has all the benefits of the traditional euro with an additional 4 inches behind the trigger mechanism to put more space between the shaft loading fins and the diver. This allows for hip loading and easier chest loading. This space also creates a higher pivot point on the speargun for assisted tracking.