Thank you for viewing. Hammer Supercraft HALDER SUPERCRAFT Dead-Blow Hammer Head diameter 50mm Hickory handle ■Features This is a dead-blow hammer with fine steel balls inside. The dead-blow design reduces strain on the wrist, and because the impact force is entirely transferred to the target, it doesn't cause fatigue. The head is made of durable nylon and is easily replaceable. I used it for about 3 months, but I no longer plan to use it, so I am offering it for sale. Please check the photos and description, and feel free to ask any questions before purchasing. Items for sale Manufacturer: ROEMHELD Model: SUPERCRAFT Dead-Blow Hammer Part Number: 003366.050 Size: 50mm (head diameter) Head: Nylon (replaceable) Country of Origin: made in Germany Weight: 990g 160g lighter than the steel handle version. ※ Current product, new ones are sold on Amazon for 8,538 yen (excluding shipping). If you don't mind used items, you might find this a good deal.