The pencils are 21 cm and 10 cm long and can be sharpened or the paper removed.
The tip must always be flat and not pointy.
Various designs as supplied.
If the pencil arrives not sharpened then use a standard sharpener and gently sharpen the pencil until a blunt flat end is reached.
Some pencils are two in one and can be halved if easier to use–just bend and cut the paper and sharpen one end.
Sorter ones now available.