The wooden flat dowels are made from beech wood. The wooden connecting plates are used for the firm, stable joining of wooden parts such as carcasses or frame corner joints. However, they can also be inserted into a groove instead of a tongue. A 4 mm thick groove is inserted into both wooden parts to be joined using a groove milling machine. 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. Quick and easy to use. High accuracy of fit. For optimum glue distribution and swelling effect. TOX Biscuit wood XL P20 is supplied in a large pack: Ideal for stocking up when there is a high demand. The red all-purpose dowel has made TOX famous: the company is a leader in the field of all-purpose dowels. The comprehensive range is consistently geared towards the needs of customers and end users. The TOX brand stands for innovative products and competent solutions in the field of fastening technology.