Printed on durable, high opacity adhesive vinyl.
• BTW, those units are inches. For the metric folks the sizes are:
– 3×3 = 7,60cm x 7,60cm
– 4×4″ = 10,15cm x 10,15cm
– 5,5 x 5,5″ = 14cm x 14cm
Don’t forget to clean the surface before applying the sticker.