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ROOR® Grinder 4pc Medium

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COLOR: Black

This ROOR medium 4-piece aerospace grade aluminum grinder is a step up from the rest. Coming in at 2.125" tall by 2.35" wide. This grinder is ½" large than the ROOR 4-piece Small grinder, it can accommodate much larger quantities of plant material, has a larger pollen basin, and a stronger magnet.

The tooth design and threading pattern are one of a kind and make this product a true leader in the industry. This is our most popular grinder due to the size, cost, and quality.


  • ROOR 4-Piece Medium Grinder (your choice of color)

 Production/Shipping Estimate 2-5 weeks.

The product image serves only as an example. The colors and arrangement of the color applications may differ due to the handcraftsmanship. We reserve the right to give our glass artists creative freedom, which is the only way to ensure the creation of the highest quality unique glass specimens.


!WARNING This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to