This 24"x 24" hand sifter is geared towards the broad-based crime scene needs of Law Enforcement and ERT. Made of sturdy 2x3 spruce, with pine battens, the sifter fits atop most standard waste receptacles. Shipped in compact bundles to be assembled on site, the wood is pre-cut and pre-drilled and is accompanied by assembly hardware and instructions. The easy, ten minute assembly, the portability, the minimum storage space needed, and the cost effectiveness, makes this sifter especially sensible for small, roll-out crime scenes (after which the screen can be disposed, if contaminated.)