The Trend biscuits are made of die cut beech. The Trend Beechwood biscuits which expand when in contact with a woodworking adhesive such as PVA glue and they are ideal for strong, fast, and accurate jointing of hard and soft woods, plywood and composition board. Compared to doweling, biscuit jointing is faster and more precise. Trend biscuits are made of die cut beech. Beechwood biscuits which expand when in contact with a woodworking adhesive such as PVA glue. They are ideal for strong, fast, and accurate jointing of hard and soft woods, plywood and composition board. Compared to doweling, biscuit jointing is faster and more precise. Specifications Size 0 47.5mm x 15.5mm x 4 mm For Board Thickness 8mm - 12mm Size 10 53mm x 19mm x 4mm For Board Thickness 13mm x 18mm Size 20 60mm x 23mm x 4mm For Board Thickness 19mm +