These clear filter baskets from Normcore give you a close look at your coffee distribution. An excellent tool for helping fine-tune your distribution and tamping techniques! Made with Polystyrene, a tough plastic with superb insulation and great clarity. Available in 2 sizes: 58.5mm / 53.3mm Normcore Transparent Filter Basket Features A fantastic learning tool - Allows you to observe your coffee distribution after using a WDT and tamping tools. Helps improve technique - The clear view lets you spot inconsistencies before extraction and helps you zero in on the correct grind size and best distribution tools to use. This product includes: 1 x Normcore Transparent Filter Basket Specifications Materials Polystyrene Dimensions 58.5mm (H) 24.6mm x (Internal width) 58.8mm x (External width) 70.15mm53.5mm (H) 24.6mm x (Internal width) 54mm x (External width) 62mm Weight 17g Recommended Additions Normcore Spring Loaded Tamper Normcore WDT Tool Normcore Tamping Station Available Sizes 58mm 54mm