I like that I am able to effectively use it multiple angles of functionality for maximum angularity,and the weight in the hand penetrated down deep good into the ligaments seems to be a great value for the money with a really nice smooth finish and overall each piece has fantastic satisfaction with its own unique relief points. Also, I must note that there’s no rough edge at all for the hands so it’s very user-friendly for the hands to grip unlike cheap aluminum knock offs so for functionality effectiveness and ease of use fit and weight. I have to give it an A+. if you have issues in your elbows, wrist or anywhere between above your elbows in between your shoulders, IT vans knees, think of that nature pick these tools up do yourself a favor get some Shea butter or some coconut butter and gently work your way into it drink lots of water afterwards as you break things up in your body, your urinate, the hard points out that you break up with the physical therapist says those are toxins and yes in time that’s how you heal and recover and I feel a great sense of relief and satisfaction with these tools and I am very picky. Oh yeah and by the way, it does come with a nifty little case with enough room to add a couple extra pieces. Should you choose to buy some add-ons one thing I would note though is that case could use a loop to hang it from the wall or something That would be nice for whoever is pro is in the future. Should they read this.