This is a 6.4kg fibreglass sledge hammer. · · · Fibreglass handle · · Hardened steel head · · Ideal for hitting larger structures · · Premium Polyfibre shfted sledge hammers with integral overstrike protection · · The shafts will not rot, shrink or become loose through periods of inactivity · · Unmatched Comfort: Experience the difference of a shock-absorbing fibreglass handle that reduces fatigue and provides maximum comfort, even during prolonged use.