These sharpeners are specially designed for left-handed artists. The snap-cap sharpener has a compact square shape that can be easily gripped in the hand. The double-hole wedge is ideal for all pencils including large diameter art pencils. The smaller 7.8mm hole is for standard pencil diameter and point-taper. The larger 11mm hole works well for careful sharpening of charcoal, pastels and colored pencils. The blade may be replaced with MG100-0050. Made in Germany.