Plastic hammer, recoil-free, for aligning workpieces on machine tables, for gentle blows during assembly work, inserts made from particularly tough, wear-resistant plastic, for an exceptionally long service life, handle made from FSC®-certified hickory wood, non-slip, robust and durable, with special wedge and Heavy-duty spring pin securely fastened in the handle tube, but still easy to replace, recoil damping through weights in the hammer head, for full, precise hits without rebound, wear safety goggles when working with striking tools