- Crystal clear viewing of 18x24 documents such as posters or art
- Keep your art, posters, or other memorabilia clean and safe
- Pack of 5 18x24 poster size document holders per box
- 15 mil thickness means better protection than other Sentry holders on the market
- Opens on Short Side
Protective sleeve Sentry holders are essential items when collecting photos. Sold in packs of 5, art size Guardhouse Sentry holders are 15 mil thick and have an interior dimension of 18 1/8 x 24 1/8 and an exterior dimension of 18 1/2 x 24 1/4 inches. Guardhouse Sentry holders are made of non-plasticized rigid vinyl and are designed to keep photos unharmed during long-term storage, at the same time as offering the collector great visibility of their collectible items.