Hello
The 2 x 2 or 2 1/2 x 2 1/2 holders have mylar in them and tyhey are really the best way to go.
The 2 1/2 x 2 1/2 holders are better for the chips, the 2 x 2 are just a little to small for the chips. If you would like to rexeive our 30+ page catalog on supplies for the chip & tokens collector, just give us your mailing address. We can ship one out at once and at no charge.
The 2 1/2 x 2 1/2 holders run $7.00 per 100 and the pages they go into run $7.00 per dz or $55 per 100. Thanks C. T. Rodgers