What is the weight?
The 10 pounds is 7,5 inches high and 4 inches wide.
I have a kettlebell and the surface is slippery, but I want to know how the grip is.
I suggest using chalk since it can be slippery in the winter.
Is this made from materials that have been caused by cancer?
I am sure it is made in china.
What is the size of the handle?
It's 1 5/8" for the 50lb and 1 1/8" for the 10lb.
Is the unit with flat bottom so it won't wobble or fall over?
It has a flat bottom, but just remember it's a small weight and the bottom is somewhat small, but it stays straight when set.