Not enough space to throw the javelin? That's not a problem with the Gill(R) Nocken Ball. Designed to simulate the feel of throwing a javelin, nocken balls can be safely used indoors to make sure your training schedule isn't interrupted. Weight: 1 kg / 2.2 lb. FEATURES: Javelin training aid Simulates the feel of throwing a javelin Safe to use indoors Weight: 1 kg/2.2 lb. One-year manufacturer's warranty Model: TA1010 For additional information relating to the Manufacturer's Warranty, please contact 217-367-8438.