The Fresha Flora Disc is an anti-microbial disc that is placed in a flower vase. It increases the life cycle of the flowers for up to twice as long keeping them healthy & helping them blossom for longer. The environmentally friendly disc also keeps the water smelling fresh eliminating the need to change the water & keeps the flowers, the vase & the general environment cleaner & fresher. As a result, there is no need to change the water whilst the disc is inside the vase. The science behind all of this is due to the anti-microbial action of the 99.9% pure silver disc which kills off all fungal, bacterial & viral micro-organisms. This product is therefore a perfect gift & enhances the flower buying experience. * There is also a money back guarantee on this product. If you are unhappy with the product you can return it to us for a full refund, excluding delivery.