Maeda Shell Service Features: The lead shot action provides a shockless experience, reducing hand fatigue. Special urethane prevents cracking, chipping, and noise. The handle won't break, and the head won't come off, ensuring safety. Durability is approximately 30 times greater than other plastic hammers. Type: Shockless Hammer Material (Head): Special Urethane Material (Handle): Special Urethane Selling Price (Excluding Tax) ¥12,980 Tax Included ¥14,278 Head Diameter (Φmm) 50 Total Length (mm) 345 Mass (g) 681 Head Length (mm) 115 Handle Length (mm) 295 Used a few times.