Grinder "Crystal Blue" Zinc 4er Product category Bong accessories Sub category grinder Item number 31224 size: 40mm diameter material: zinc function: 4 pcs. Product description quad grinder Diameter: 40 mm Similar products Grinder "Crystal Rainbow" Zinc 4er 31223 € 7,65 size: 50mm diameter material: zinc function: 4 pcs. Grinder "Metal" 4er 12 pcs. 31191 € 59,40 size: 40mm diameter material: zinc function: 4 pcs. Grinder "View" rainbow 5er 31183 € 10,95 size: 50mm diameter material: alu function: 5 pcs.