You are buying a Wooden Karambit Knife for training used in Filipino Martial Arts Kali, Escrima, Arnis.
Made from Kamagong Ironwood wood native to the Philippines which is one of the hardest hardwoods in the world.
Handmade in the Philippines.
Approximately 5" in wooden blade length and 9" in total length with the handle.  These wooden Karambit are handmade and each training knife is unique and have slightily differing blade and length and each will have different grain patterns and colors. 
Each training knife weighs around .18 lbs.