TPU elastic material: Made of anti-UV grade TPU elastic material, it is soft in texture, environmentally friendly environmentally friendly and non-toxic. It is designed to absorb impact energy and not bring discomfort to the human body. Protect your beautiful eyes: The safety guards mounted on both sides of the glasses prevent foreign objects from flying into the side of the eye, protecting your eyes from wind, dust and particles. The transparent reflective design makes your glasses cooler. Left and right logo: The kit includes 2 pairs of side flaps, each side of which is marked with a logo. The left flap has "L" on the side and the right side is "R", so you can wear it without mistake. Easy to use: Easy to install, no need to install any parts or tools, just pass the temples through the holes. It can also be easily removed from the glasses frame. Universal side shield: The universal side shield measures 50 x 45 x 20 mm and is small in size and light in weight. It can be used with all safety glasses and ordinary small and medium-sized glasses. Features: Made of elastic TPU anti-UV material, it is soft in texture, environmentally friendly and non-toxic. It is designed to absorb impact energy and not bring discomfort to the human body. Suitable for small and medium-sized glasses. Each pair of glasses on the side of the glasses has a logo, the left side of the wing is marked "L", and the right side of the wing is "R", so you will not make a mistake when wearing them. Simply install the temples through the holes without any parts or tools. It can also be easily removed from the eyeglass frame. The safety guards mounted on both sides of the glasses prevent foreign objects from flying into the side of the eye, protecting your eyes from wind, dust and particles. Used for visual comfort and productivity. The kit includes 2 pairs of side flaps for glasses. The universal side shield measures 50 x 45 x 20 mm and is small in size, light in weight and comfortable to wear. Features: Color: transparent. Material: TPU. Dimensions: 50 x 45 x 20 mm. Quantity: 2 pairs. Package includes: 4 x side safety glasses. Note: Please allow 1-3 mm error due to manual measurement.