Product Highlights: 2-Pack, Contain 2 len s cap and 2 leash keepers Lens cap: The  Lens Caps are center-squeeze snap-on type lens caps for lenses in 46mm. This lens caps protects the lens from scratches, moisture, dust and fingerprints when the lens is not in use. Made of ABS, the lens cap is lightweight and durable.  leash keepers: Adhesive-backed disc attaches to the cap Elastic loop to wrap around lensbarrel The elastic loop goes around the barrell of your lens so that your lens cap always remains attached, hanging from the lens.Protect lose a lens cap!