- Crystal clear viewing of 2 3/4 x 3 7/8 sports cards
- Holds 180 pt trading cards
- Keeps trading cards clean and safe
- 25 holders per pack
- 12 mil thickness
- Opens Long Side
Protective Sentry Holders are an essential storage piece when collecting trading cards. Sold in packs of 25, Guardhouse Sentry holders for standard size cards are 12 mil thick and hold 180 pt trading cards. Each holder measures 2 3/4 x 3 7/8 inside, while the outside measures 3 x 4 inches. Guardhouse Sentry holders are made of non-plasticized rigid vinyl and are designed to keep sport or trading cards unharmed during long-term storage, at the same time as offering the collector great visibility of their collectible items.