Comprises a 15kg handbag style weight with covered chain, carbine clip and a U type bracket to fit up to 34mm dia back tubes. Ideal for concrete surfaces, no drilling or preforming necessary as these are freestanding weights. Generally 6 weights per goal. The FA have issued new guidelines for users of portable goals to assist in the calculation of the weight needed for safe surface anchoring: Calculate the height of crossbar divided by runback length of side frames. Multiply this figure by 112 to obtain the weight in kiograms needed to safely surface anchor the goal.