Fab set of 10 plain giant numbers in generous 27cm height 
(1-10)3mm MDF in plain unpainted - Please note that the black is just to show you what you can do with them. 
They do not come in black anymore. 
You can use Black chalkboard paint or acrylic and a POSCA white paint marker to draw your lines on. 
If you use CHALK markers, these are non permanent so you can wipe the lines off with a damp sponge or cloth 
There is also the option to add a ZERO to your set, so you can work with multiples of 10's if you're learning those 
The numbers are also available singly if you are celebrating a birthday
If you select single numbers please write in the comments which number you need