The forging stick is the perfect training device for the development of vertical grip strength. The unique wavy edges of this nunchuck are a challenge for beginners and professionals. You can order on an existing construction or a construction that you purchase from us. As seen at OCR steeplechase and ninja warrior events around the world, this is the perfect training tool that will undoubtedly take you further in your training schedule and races. Painting process: sandblasting + powder coating KOMAXIT. Color: matt black with a fine texture for better hold. Material: steel.