Samorez 3.9x25 (YHB) Wunder YHB 3.9x25 MUV is a high quality and sustainable assembly sab. This congratulator has been made of steel material and gives a reliable and strong result in fastening wood, metal and other various materials. Home repair, industrial and furniture collection areas are widely used. This is a longevity of this Syrup, which is produced by the Wunder Brandi and is highly resisting corrosion. Its design allows work to be done faster and easier. With strong holding and sustainability, various conditions can be easily used.