The Felt Wool Blend Sheets A4 Assorted Pack of 24 are handy precut sheets of felt perfect for felting. The Felt Wool Blend Sheets are a 2mm-thick felt made up of 35% Wool and 65% viscose acrylic and is suitable for dry felting, two dimensional collage or cutting up for pattern and motif projects. Wool-blend felt will pull and stretch, and is softer than craft or acrylic felt. This felt is not recommended for cushions or 3D textile creations that require filling.