Feature 1Very considerate design for convenient use: one end is for tightening and the other end is for loosening. 2Polished smooth surface is to protect guitar and avoid scratches while working. 3Suitable for tightening or loosening most nuts or thumb wheels found on guitars, like output jack, control pot, pickup switch, tuning machine, and bridge thumbwheels. 4Small body is easy to store it in guitar case, and you can use it whenever and wherever you need. 5Made of solid stainless steel, sturdy enough for long term use.SpecificationFeatures: Very considerate design for convenient use: one end is for tightening and the other end isfor loosening. Polished smooth surface is to protect guitar and avoid scratches while working. Suitable for tightening or loosening most nuts or thumb wheels found on guitars, like outputjack, control pot, pickup switch, tuning machine, and bridge thumbwheels. Small body is easy to store it in guitar case, and you can use it whenever and wherever you need. Made of solid stainless steel, sturdy enough for long term use. Specification: Material: Stainless Steel Color: Silver Size(LxW): Approx. 98x28mm/3.85x1.10inch Weight: Approx. 27g Packing List: 1 x Spanner Only(Guitar is not included)