Original plastic cap can not protect the whole lens front, and because its protruded design, make it very easy to drop and lose. this metal lens cap just solved these problems. Material: Aluminum Fully Padded EVA Inner Lining. Weight: 26g Compatibility: NIKKOR Z DX 16-50mm f/3.5-6.3 VR (Silver or Black) Items included: Metal Lens Cap x 1