* 3x4 sharp prongs, straight shaft, 14cm 3 x 4
* 3x4 sharp prongs, straight shaft, 17cm 3 x 4 
* 3x4 sharp prongs, straight shaft, 20cm 3 x 4 
* 3x4 blunt prongs, straight shaft, 14cm 3 x 4 
* 3x4 blunt prongs, straight shaft, 17cm 3 x 4 
* 3x4 blunt prongs, straight shaft, 20cm 3 x 4