Our Custom Sai is hand forged from CP Grade 2 Titanium. The HDP Sai is roughly 4-4.5″. You can order the Sai threaded or not, depending on your needs. The HDP Flat Cap is sold separately. You can add color to your Sai or leave it plain, just let us know how you want it to look. As with all of our hand forged customs, there will be slight differences between each one, making your item truly one of a kind.