Trend TREBSC10100 No.10 Jointing Biscuits Beech Box 100 for board thickness of 13-18mm used by jointers joining timber. The Biscuits Beech expand due to contact with working adhesive. Quick and easy to use with strong and accurate joints formed. As a result adds toughness and durability to a project. The Trend Jointing Biscuits are made up of laminated beech which is then compressed before being die cut. Jointing Biscuits must be stored in a clean,dry place away from moisture. Lastly, these No. 10 biscuits are ideal for softwoods, hardwoods, plywood and composition board.