This beautiful half skeleton clear hand crank pencil sharpener is very safe for using. It can sharpen pencils by using only 1/2 force than traditional hand crank sharpener. It features a large-capacity shavings compartment that locks in place so that it won't fall out or spill if the sharpener gets dropped. This lock can also close the sharpening hole to prevent shavings from falling out during transport. It works well with all standard-size graphite and colored pencils whether they are round, hexagonal, or triangular.