Premium Wood Pulp - Made from high-quality, oxygen-bleached (chlorine-free) natural wood pulp. No fluorescent agents, no additives, no chemical residues-ensuring a pure, clean coffee taste. Pure & Clean Extraction -Help you extract a smoother, more balanced cup with enhanced clarity and original flavor. Wave Cake Design for Flat-Bottom - The 3D wave-shaped structure optimizes water flow, prevents channeling, and ensures even saturation for uniform extraction-perfect for pour-over enthusiasts. Strong & Stable Construction - High-temperature pressed, one-piece molding (no adhesives) provides superior durability and prevents collapse during brewing. Wide Compatibility - Fits most popular flat-bottom , including: for Wave Series,Origami Dripper , B75 , other standard models Color: As Shown Material: plastic Package Contents: 100 x Coffee Filter Paper Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.