The most popular screwdown design on the market. Invented by Pro- Mold in 1993. Beware of cheap imitations.

Strengths: Small and compact compared to traditional style four screw screwdowns which allows for storage of many in smaller spaces particularly in monster boxes or shoe boxes. What made the one screw screwdown popular is the fact that you get all the benefits of a four screw, as far as protection of the card goes, but with only having to use one screw instead of four.

Weaknesses: The product itself has no real weakness, but some collector's prefer not to deal with screwdown holders because it's time consuming and tedious to screw together many at a time. - Holds standard trading card
- 2 piece design w/brass screw
- Individually packaged
- New Style

Dimensions
- Exterior 2 7/8 x 4 x 2/7
- Interior 2 1/2 x 3 1/2 x 2/87