The Good Delivery specification is a set of rules issued by the London Bullion Market Association (LBMA) describing the fine ounce weight, purity and the physical appearance of gold and silver bars. If a refinery has been accredited by the LBMA, it must produce bars according to the Good Delivery specifications.Voima's Customers can withdraw Good Delivery gold bars: these bars weigh approximately 12.4 kg, and the withdrawal price can be checked from Voima's pricing page.