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Wooden Folding Ruler

When working some crime scenes, you may need to show the distance and relationship between several small items or objects. This can be accomplished by using a wooden folding ruler, which is adjustable. You can use it to grid out blood spatter by just opening it up to a 90-degree angle. You now have an angle that you can set against the wall, tape to the wall or lay on the floor.

The wooden folding ruler can be purchased at most hardware stores for about $8.95.

Wooden Folding Ruler
Wooden Folding Ruler



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