Approx size (4.25") HIGH X 6.5 INCHES WIDE. This item is self-adhesive (vinyl cut) and can be used for a host of applications.. 1/ Clean area on which you want to apply number. 2/ Carefully peel off the backing paper. 3/ place the vinyl in position and rub down firmly (working from the centre outwards using a firm squeegee to avoid air bubbles). 4/ Carefully remove the facing paper.