1、It can be turned 180 degrees positively and negatively, making it more flexible to use. 2、One card with three colors, one card for multiple uses, it can effectively avoid light reflection and light transmission. 3、It is thick and durable, environmentally friendly and has no peculiar smell and uniform color, which can withstand long term opening and closing. 4、The 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. 5、The darkened surface has a shading effect. The black surface has the effect of weakening the light and enhancing the contrast between light and dark. 1 x A4 Photography Cardboard Item Type: A4 Photography CardboardMaterial: PaperboardFold Size:Length: Approx. 29cm / 11.4inWidth: Approx. 21cm / 8.3inUnfold Size: Length: Approx. 42cm / 16.5inWidth: Approx. 29cm / 11.4inProduct Weight: Approx. 206g / 7.3ozMaximum Load: Less Than 2KG / 4.4LBSFolding Angle: 180 Degrees