1. Made of high quality metal and glass material. 2. Durable and lightweight, easy to install and remove. 3. Protects lens from dust, moisture, scratches, and breakage. 4. UV filter: Reduce haze and improve contrast to your video and digital images by minimizing the amount of ultraviolet (UV)light. Especially useful in areas of high altitude, snow, or beach, eliminating the undesirable stray light. 5. ND filter: Reduce miscellaneous light, present more realistic image effect. Great for portraiture and outdoor scenes in strong sunlight. Applies slow shutter speed under strong sunlight exposure. Allows wider apertures, effectively decreasing depth of field.Specification: General Material Metal, Glass Size 38*9mm Weight UV: 6.3g, ND:5.9g Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 8cm * 8cm * 3cm / 3.15inch * 3.15inch * 1.18inch Qty per Carton 200 Carton Weight 8.80kgs / 19.40lb Carton Size 42cm * 34cm * 32cm / 16.54inch * 13.39inch * 12.6inch Loading Container 20GP: 583 cartons * 200 pcs = 116600 pcs40HQ: 1354 cartons * 200 pcs = 270800 pcs