This is IT. The ultimate statement of wealth and power. Weighing in at 100 Troy ounces, the King Stacker® is for you silver bugs who use the 10oz stackers as paperweights and skipping stones. Each King Stacker® silver bar has a unique serial number and we are ISO 9000-2015 certified. The Scottsdale Silver King Stacker® features the same interlocking design as its smaller counterparts. To top it off, they also qualify to be placed in a Precious Metals IRA. BRAND NEW .999 Fine Silver Bullion MADE IN USA by US Citizens. Vault Ready.