Nikkalite Flexible Encapsulated Lens Reflective Sheet FMG Series: Reflective sheet with excellent flexibility and printability (A4 size) Set of 3 orange sheets "Reflector, reflect, reflection, retroreflection, reflect, Scotchlite, 3M" I bought a roll on Amazon and cut the remainder into A4 sizes. Since I cut it myself, there are some slight irregularities in the cut edges. The size is almost A4, but there are slight variations. The following is from the Amazon site: Reflective sheet compatible with various printing methods Excellent flexibility makes it suitable for application to curved surfaces High adhesiveness even at low temperatures Excellent suitability for seals, stickers, and various signs