Save your hard earned cash and steer well clear of manufactureres branded products and buy these little beaut's insted. Made in GB they do exactly the same job and IMO are of comparable quality to the originals. I should know as all my originals supplied with the mower soon snapped and chipped.
Price wise you get more of these per pack than original equipment for a lot less money. If you dont belive me just check out say B&Q and see for yourself.
Super quick delivery as well meant that I am delighted with product quality, price, and service from seller.
Tidy up your garden and buy these, you'll not be disappointed.