1、Avoid Non Imaging Light: In backlight, sidelight or flash photography, it can prevent the entry of non imaging light and avoid fog. 2、Avoid Scattered Light: When shooting in front light and side light, it can avoid the surrounding scattered light from entering the lens. 3、Avoid Interference Light: In lighting photography or night photography, it can prevent the surrounding interference light from entering the lens. 4、Use Purpose: Can prevent accidental damage to the lens, and it can also prevent fingers from accidentally touching the surface of the lens. It can also shield the lens from wind, sand, rain and snow to some extent. 5、Applicable Lens: Suitable for EF 70‑300mm f/4‑6 IS USM Lens, for EF 70‑300mm f/5‑6 DO IS USM Lens, It can be reversed to make it more convenient to carry. 2 x Bayonet Lens Hood Shade Item Type: Bayonet Lens Hood ShadeColor: As Pictures ShownMaterial: PlasticWeight: Approx.108g/ 3.8ozFeatures: Reversible DeductionApplicable Lens:for EF 70-300mm f/4- 5.6 IS USM Lensfor EF 70-300mm f/ 4.5- 5.6 DO IS USM Lens