Gumbek is a didactic plush toy that stimulates creativity and encourages the development of fine motor skills through play. This modular toy comes in parts and kids have to assemble their own toy by connecting the parts together in order to create a whole. There are seven different segments; three larger ones and four smaller ones. The pieces are attached to one another by threading the buttons through the buttonholes, which helps to improve fine motor skills, Also, the arrangement of different shapes helps to develop imagination and creativity as the toy can be put together in different ways.

Kištra is a small design company from Zagreb. It was founded by industrial designer Lea Vavra. The core Kištra's business is the design and production of interactive, handmade soft toys for children. Kištra originates from the first plush toy manufacturing company in Zagreb (Croatia) – „Igračke Vavra“, which was founded by Lea's grandmother. From her, she inherited a love for toys and quality handmade products. What makes Kištra's toys special is the purposeful design that helps to refine fine motor skills and develop each child's creative skills..

Kistra is a design company from Zagreb. The core of our business is the design and production of interactive, handmade toys for children. We originate from the first toy manufacturing company in Zagreb – "Igračke Vavra", from which we inherited a love for toys and quality handmade products. What makes our toys special is the purposeful design that helps to refine fine motor skills and develop each child's creative skills.