The softness of toy comes from very specific material that is hard to describe but everyone who have hold such item in hands would know what I am talking about. It is similar to a velvet and it was very popular for toys in Soviet Union.
Toy is in good vintage condition with some imperfections. One of them is in frog's mouth, best visible in 4th picture. Some others see in last picture.
Frog measures 4.1'' (or 10.5cm) tall and 5.7'' (14.5cm) long.