Vktech 5Pcs Rear Lens Cap Dust Cover for Canon EF ES-S EOS Series Lens Black Suitable for all Canon DSLR Lens Material: Plastic Color: Black Size: approx. 5.4 x 6.5 x 1.6cm (Inner D* Outer D* H) It helps to store your lens , after it is removed from the camera, say goodbye to any unnecessary dust, dirt or fingerprints.