The Double Doofer was easy to install and looks impressive. I can't find any fault with the product or installation instructions. I'm using it with an 16mm Protector chain and a Squire SS65CS padlock. Just the sight of them alone should put any thief off.

Having installed the Double Doofer I can confirm that it's a very high quality, well made security device. Any prospective thieves would probably need a JCB to pull it up. Easy to install yourself, but you need a powerful drill.

I dithered over which anchor to buy for quite a while, but so happy I chose this one. Service, Delivery and Product are all high class. Installation very straight forward, once I'd hired a drill powerful enough to conquer the garage floor! I'll be back for a 19mm chain in the new year. Thank you David!

Fantastic service from start to finish, would highly recommend!

I have just bought some ground anchor bolts and wanted to write a review because the service I have received has been excellent and so efficient. My initial contact was dealt with in detail to make sure I was buying the right product and despatch was dealt with instantly. well done you deserve a great review

Great product, excellent service, delivered very quickly

I have placed two orders with SFB recently, and in both cases their customer service has been fantastic. David was very helpful and attentive to my needs. 5 Stars is not enough.

I bought the Double Doofer Deal for my new bike, and the service and delivery were very fast, I was even e-mailed on a Sunday to confirm some details. The Doofer, chain and lock are exactly as described, and the fitting kit had all I needed (except the power tools!)

Very nice strong ground anchor, can sleep soundly at night knowing my bike is secure outside. Product was very well packaged and received very quickly! Great item.

Superfast delivery on this fantstically engineered ground anchor, you can see and feel that it's a top quality item, just its presence is likly to make anyone thinking about attempting to force it off for life, I fitted it to secure my Tiger800, the fitting process is very easy just follow the detailed instructions and you wont go wrong, i would say even for a novice DIY'r it would only take half an hour, love the fact that it can be used in more than one location, if you are looking to secure your beloved bike then this is the bit of kit you need. 5 star excellent product

Exceptionally easy to install with a cheap corded, non-SDS drill and I have little experience in such things. Very secure to the ground, as long as a chain is running through the anchor no-one is getting under it for leverage. Being able to move it wherever for the price of some replacement expander bolts is brilliant. I'm not sure why you'd go for the permanent anchor when this one is this good.
[Pragmasis Comment: The Torc anchor is cheaper and can also be used with resin fixings, which can be stronger when used in suitable concrete. In brickwork, there is less of a distinction other than the price difference. The Double Doofer does require a close-fitting chain to be left through the anchor at all times in order for it to remain secure, so there is a minor additional complication with its use.]

A great product and comes complete with all fittings. This is a stronger Anchor than others I have seen and a major plus is you can re-locate it as many times as you like, unlike others. Very prompt delivery and very good communications. I have now purchased quite a few products from this firm, and I’m sure I will purchase more. I highly recommend if you want quality and service.

A simple but effective design, very heavy duty.
I installed it in under 10 minutes (made a cardboard "stencil" of the holes/lock first, which made installation a doddle).
Works great with my 16mm chain, and I'm pretty sure the house that's attached to it now is pretty safe. As well as the bike, of course.

This product comes with everything you need to make sure it is fitted properly and because of that is easy to fit. The system looks very secure and I am very happy with it. This firm has excellent customer service. If Carlsberg were to go into this line of business - they could not do better!!

I moved house recently and have a covered parking space so I shopped thoroughly for security that would keep my bike safe. I chose well. The double doofer is simple to install and works a dream with my very chunky lock!! I have no doubt that the efforts it would take to break my bike out would require attention being drawn to the theft if they even managed to get it out!! Great product, great price, great choice. Thank you.

Easy to install, secure as anything I have ever seen - make sure you get the additional drill bit though, it is a quality bit - but makes the job a million times easier!

Highly reccomended!

Very happy with this extremely sturdy ground anchor, and also that I can move it at any time if I wish without having to buy a new one. Very good and clear instructions, easy to fit.