Features With this Cap keep you can easily keep track of your lens caps The small adhesive button sticks onto the front of your lens cap and the elastic loop goes around the lens so that its cap is always attached hanging from the lens You will never lose lens cap again Lightweight and durableAdhesive backed disc to attach to the capElastic loop to wrap around lens barrelWorks with all SLR camerasIncredibly convenient solution to such a common problemTotal Length 230mm 9 06 inches Approx Package Included 5 x Lens Cover Cap Keeper