This great product comes with 5pcs set, it includes 1 blackboard , 1 special window marker, 1 duster with magnet and 2 magnets. 

The window marker writes with great vibrant NEON colors.

Erasable and write many times.

Ideal for Kids drawing activities, bulletin boards of schools and restaurant.

Special window markers writes great on other glass surface as well.

It's available in 4 different sizes:

5162 :  8"*12"

5179:   12"*16"

5186:   16"* 24"

5193:    24"*36"