This review is from: Perfect Fitness V2 Pushup Handles - Black, One size (Sports)
Customer review from the Amazon Vine Programme (What's this?)
These are fantastic! Sturdy and robust, they have a comfortable rubberised grip and rotate without slipping, thus giving you access to a range of different movements that work all the muscles of the upper arm and upper chest.
Of course you can do push-ups without handles, but personally I find they hurt my wrists, whereas with the handles my wrists seem to be in a more natural and more comfortable position.
There aren’t any instructions in the box, but I googled “perfect pushup” and found a host of YouTube videos and downloadable pdfs of various workouts. In fact I was surprised at the variety – I never realised you could do so many different types of pushup!