These wooden flat dowels, Biscuit Wood, are made of beech wood. The wooden connecting plates are used for a firm, stable connection of wooden parts such as carcase or frame corner joints. They can also be inserted into a groove instead of a tongue. A 4 mm thick groove is created in both wooden parts to be joined using a groove cutter. The connecting plates can be easily inserted into the groove thanks to their rounded edges. By adding white glue, the plates swell and fit perfectly.