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The Human Grade 2.5" Two-Tone Notched Grinder is a 2.5" (63mm) 4 piece grinder with a black body, deep notches for grip and colored accents showing through the cutouts. Human Grade fits it with tighter sealing rings between the chambers to help keep herb and pollen from spilling. Accent colors include green, red, purple, orange, blue and teal.
Why Tighter Sealing Rings Matter in a 4 Piece Grinder
Loose-fitting chambers let fine pollen leak out and let air in. The snug rings on this grinder help the pieces seal against each other, which keeps material where it belongs when the grinder is in a bag or pocket. The notched body gives you solid leverage when you twist the lid.
How a 4-Piece Grinder Works
The top chamber holds the teeth that shred your herb. Ground material drops through holes into the middle chamber, where a fine mesh pollen screen lets only the smallest particles pass. Those collect in the bottom chamber, giving you a separate stash of fine pollen. The included scraper helps you gather it.
Cleaning Your Grinder
Tap out loose material after each use. When resin builds up, separate the pieces and soak the metal chambers in isopropyl alcohol, then brush the teeth and screen with a soft brush and let everything dry fully before reassembling. Freezing the grinder for a few minutes first makes sticky residue easier to knock loose.
Product Highlights:
- Black Body With Colored Accents
- Tighter Sealing Rings
- Deep Notched Grip
- 4-Piece Design With Pollen Screen
- Scraper Included
- 2.5" (63mm) Aluminum Body
Product Specifications:
| Brand | Human Grade |
| Size | 2.5" (63mm) |
| Material | Aluminum |
| Pieces | 4 (Lid And Teeth, Grinding Chamber, Pollen Screen, Collection Chamber) |
| Included | Scraper Tool |
Frequently Asked Questions:
Do the sealing rings make it hard to open?
No. They add a snug fit, but the notched grip gives you plenty of leverage.
Does it collect pollen?
Yes. A pollen screen sifts fine particles into the bottom chamber.
| Shipping Service | Fulfillment Time | Shipping Time | Carrier |
|---|---|---|---|
| Free ShippingMin $50 Order · USA Only | 2–3 Business Days | 2–7 Business Days | FedEx / USPS |
| Economy Shipping | Same or Next Business Day* | 2–7 Business Days | FedEx / USPS |
| Standard Shipping**Supplier-shipped items only | 1–3 Business Days | 3–5 Business Days | Varies by Supplier |
| FedEx Ground Economy | Same or Next Business Day* | 2–7 Business Days | FedEx |
| FedEx Ground / Home DeliveryHome Delivery to residential addresses | Same or Next Business Day* | 1–5 Business Days | FedEx |
| FedEx Express Saver | Same or Next Business Day* | 3 Business Days | FedEx |
| FedEx 2Day | Same or Next Business Day* | 2 Business Days | FedEx |
| FedEx Standard Overnight | Same or Next Business Day* | 1 Business Day | FedEx |
* Same or next business day applies to orders placed before 12pm CT, Monday–Friday, excluding national holidays.
** Standard Shipping applies only to items shipped directly from our suppliers.
Detailed tracking is provided on every order.
Shipping times are estimates provided by the carrier and are not guaranteed by SMOKEA®.
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We hope that you will be delighted with your items however, if you would like to return your items for any reason at all, you may do so within 30 days of receiving your order. Items returned must be in a new and unused condition and are the responsibility of the customer until they are received by SMOKEA.