The Pulsar Concave Rainbow Anodized Aluminum Grinder has a 2.5 inch diameter and a concave lid that's perfect for holding herb while you're packing a pipe, joint, or spliff.

The grinding chamber features diamond shaped shredding teeth and is specially shaped to funnel herb towards the center, for an even and thorough grind.

Below the storage compartment is a sifting screen that leads to a pollen chamber that catches precious kief from the ground herb.

This cool colorful grinder is made from airplane grade anodized aluminum, and the color shifts in the light.

• Concave top w/ concave grind chamber
• 2.5 inch (6.4cm) diameter
• 4 piece herb grinder
• Airplane grade anodized aluminum
• Diamond shaped cutting teeth
• Pollen chamber w/ sifting screen
• Anodized chameleon shifting color
• Scrape tool included