The reason why I have given this lens kit 5 star is because it is excellent value for money.I own the Canon EF 100mm IS USM L Macro lens and everything in this kit is useful for this lens. This is a great lens and the products within the kit help to enhance my images and improve my photography style. When I first purchased the canon lens I found the long lens hood just so un-necessary especially when doing Macro photography. The 8.5cm hood just seemed to get in the way all the time.This kit contains a flower Petal style hood at 4.5cm at the longest length. It either screws into the lens itself or onto the filter of your choice.. I mostly just keep the hood on now. Please note that the hood does not reverse as the stock canon hood does. I personally feel that the plastic material that it is made of is a better quality plastic to that of the canon one. In fact I'm finding that I do not use the Canon hood at all now. It is the perfect size and makes the lens appear less conspicuous.This lens hood is complemented by the lens cap. Again this is such a great improvement to that of the Canon stock one. You squeeze the centre pinch grips together and it connects to the lens or filter so much easier. In fact you know it has a good grip and is unlikely to fall off. I also like the fact that it has no Branding on it.The Filters..... This lens in question is not just a great macro lens but also a good around lens. This is where the filters come into use. Using the ND4 filter I was able to stop down by 2 stops which On a bright sunny day shooting wide open can be very useful. The ND4 filter can be also useful when taking photo's of the sea or a river. The Polarising filter is again useful for reflections. When neither of these filters are used I keep the UV filter on more so for protection. I have not found a use yet for the purple filter. They are excellent quality.I love the filter bag pouch, an easy way to carry your filters, It protects them very well. I would be confident to say if you was to drop this filter pouch containing the filters it is very unlikely that any will break.The Cleaning pen. I have several of these but can never seem to find them. This is ideal. for those moments when in dusty locations they get you out of trouble. This product is no different to the others I have used.All in all a very useful kit that easily fits into my camera bag and most importantly at a remarkable price.