Weight: 300 g Sport-Thieme Turbojav Javelin: Train like the world record javelin thrower. The Sport-Thieme Turbojav Javelin is made of durable plastic, developed by world record javelin thrower Tom Petranoff. In addition to its long-lasting material, it features a rounded tip, making throwing practice on the sports field particularly safe. You simply assemble the javelin and the training can begin. The training javelin has the same aerodynamics as a standard javelin. Its 4 stabilizers also ensure ideal flight characteristics. Application area: Methodology. Usage area: Indoor. Javelin material: Plastic. Tip material: Plastic. Length: 71 cm. Diameter: 36 mm. Weight: 300 g.