General description Reusable coffee capsules designed for easy brewing of your favorite coffee. The lid opens for convenient filling and cleaning, making it an economical choice for coffee lovers. Technical specifications Color: Black Material: Plastic + Stainless Steel Size: 3.6 cm x 2.3 cm x 2.5 cm Package Contents: 40 x Coffee Capsules, 8 x Spoon, 8 x Brush Measurement allowed error: +/- 1-3 cm Usage Recommended to fill with 2-3g of ground coffee and 2-4 oz of water for optimal brewing. Do not pack the capsule too tightly; leave 10% space to allow for pressure during brewing.