Item Type: A3 Photography Cardboard Material: Paperboard Fold Size: Length: Approx. 42cm / 16.5in Width: Approx. 30cm / 11.8in Unfold Size: Length: Approx. 60cm / 23.6in Width: Approx. 42cm / 16.5in Product Weight: Approx. 381-390g / 13.4-13.8oz Maximum Load: Less Than 2KG / 4.4LBS Folding Angle: 180 Degrees Package List 1 x A3 Photography Cardboard 1It can be turned 180 degrees positively and negatively, making it more flexible to use. 2One card with three colors, one card for multiple uses, it can effectively avoid light reflection and light transmission. 3Thick and durable, environmentally friendly, it has no peculiar smell and uniform color, which can withstand long term opening and closing. 4The effect of brightening and supplementing light is remarkable. When the light source is back front light, the white surface of the reflector can be used to fill the front of the main object to make the picture transparent and bright. 5The darkened surface has a shading effect. The black surface has the effect of weakening the light and enhancing the contrast between light and dark.