The Craftright 49 Piece Spanner Set contains a comprehensive range of the most commonly used spanners, including 33 combination, 8 double open ended and 8 ring spanners. They are ideal for both the professional tradespeople as well as the home handyman to grip, tighten and loosen different sized nuts and bolts. Packaged in a convenient heavy duty roll up carry case, your tools will always be organised and well protected.