Do you have a Aqualung BCD that needs Sure-Lock II Weight Pouches? Well look no further. The Aqualung Replacement Sure-Lock Weigh Pouches are available in 10, 15 or 16lbs (4.5, 6.8 or 7.3kg) Weight Capacities in each Pocket. The Sure-Lock II Weigh Pouches work with Soft or Hard Lead Weights. The Sure-Lock II is Easy to Load and remains Secure until you want to release it. The Sure-Lock II Weight Pockets align themselves. Just Insert-the-Pocket until it "Clicks". A simple, Single-Pull Release is all that is needed to jettison the weights in an emergency. Weight Pouches are covered by a Limited Lifetime Warranty.