These are the models of the Flagship v3 2-in-1 Line of swords the feature the traditional 2-in-1 half-handles.
These 2015 Flagship Line Wing Chun Butterfly Swords feature better handle materials, a glossy D2 blade, a few new blade lengths, and a few minor tweaks. The handles are made with black canvas micarta and mosaic pins. The v2 swords have full handles, while the v3 swords are a limited edition model with 2-in-1 handles - a difficult, labor-intensive feature on hand-made swords that allows you to hold both swords in one hand.
These are weapon-grade true-full-tang swords. The blade is made from Austrian D2 tool steel, and the D-Guard from hot-drop forged AISI 304 stainless steel - one of the toughest steels possible to make D-guard from. The D2 blades have a glossy finish - something you only find on $1500+ swords since the hardened D2 steel is very hard to polish to a glossy state.
If you want the highest quality Wing Chun training swords on the market today, then look no further!