These are copper crimp on 6.5 mm gas checks for a .250 shank size.
They are made to be about .002 tighter making them a "small shank" version. They are about .072 in height. So, they are taller than the Gator version and made with thicker metal to maintain the standard overall diameter.
The checks are sold in resealable clear plastic bags. USPS flat rate boxes and First Class mail are used to reduce shipping cost.
Sold in 3 quantities: 250 for $7.25, 500 for $13.50 and 1000 for $25.00.
Note: Stock photo, new product image coming soon.