Features: Durable, flexible, lightweight, and soft rubber material. Made from rubber with multiple folds and an ergonomic oblique eye cup, providing ample flexibility for comfortable cushioning and protection. Extends over the eyeglass to provide a comfortable cushion for the eye. Helps reduce glare, supports focus, and protects the eyes. Improves accuracy through quick eye positioning for proper eye relief and optical center alignment. This rubber eyepiece cover fits most optical instruments with eyepiece sizes ranging from 36mm to 43.5mm. Specifications: - Suitable for 36mm–43.5mm ocular lens scope (flexible fit) - Material of eyepiece hood: Rubber with multiple folds and ergonomic oblique eye cup - Color: Black - Material: Internal rubber - Eyepiece cover inner diameter: Approx. 36mm - Fits eyepieces: 36–43.5mm (flexible fit) - Package dimensions: Approx. 17 x 10.5 x 5 cm - Package includes: 1 x Oblique eyepiece hood Note: Due to lighting effects and shooting angles, there may be slight variations in product appearance. Please allow 0–1 cm error due to manual measurement.