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Less allergies - Less contamination risk - More safety


For nurseries, kindergartens but also at home, the GUNMA ball is  the toy which increases the safety and limits the contagion risk among toddlers.


Dedicated to toddlers, the self-cleaning ball GUNMA is made of an innovative photocatalytic material which permanently cleans the ball surface.


90% of bacteria disappeared with natural or artificial light according to JIS R1702  - Test method for antibacterial activity of photocatalytic materials and efficacy.


Mouth diseases transmission risk as any kind of contagion are reduced almost to zero when using the GUNMA balls.


Colorful, soft, bouncing like a traditional ball, the ball GUNMA is used like any ball while decreasing the risks of contagion and allergy.


With an integrated internal inflation valve, the pressure of the ball is adjustable so that it has a low rebound and is soft for indoor use or higher rebound for outdoor or ball pool if more air pressure in the ball.


Download the presentation here.


Composition :
1 set is made of 1 pink or blue photocatalytic self-cleaning balls with a diameter of about 15 cm - 5.90 inches with GUNMA-CHAN character.




Gunma ball

SKU: 150
  • Gunma ball can be used indoor or outdoor like a usual ball.


    About GUNMA ball:

    GUNMA has been developped in Japan by a scientist and engineer team

    Manufactured according to European and Japanese safety regulations, this self-cleaning ball GUNMA contains no phenol, no cadmium, no phtalats according to European Directives and also has no poisonous material as per the Japanese Food Safety Law (JFSL) and ST safety standards.


    What is photocatalysis?


    The application of photocatalysis was discovered in Japan by Professor Akira Fujishima at the University of Science in Tokyo in 1967 and of which he is the current president.


    It is naturally in Japan that the first industrial implementations using the process were developed in the 1990s.


    Photocatalysis activates an element called semiconductor using light energy and using the natural humidity of the ambient air in order to facilitate the reaction.


    Activation by light triggers a catalysis (of ancient Greek κατ?λυσις Katalysis, which means to detach).


    An electron is thus emitted and will serve as a "cleaner" on the desired surface.


    Depending on a natural or artificial light source, photocatalysis is therefore a permanent mechanism, with a long lifetime and without much variation.


    Photocatalysis can destroy bacteria, certain viruses, mites, pollens and certain odors.


    The challenge has been to obtain a composite material which can be molded easily and for industrial production, be compatible with tests for tearing and destruction according to current standards (resistant to scratches, bites, etc.), non-toxic, accepting non-toxic cleaning products used by communities while having photocatalytic properties.


    Developed in the Japanese province of GUNMA more than 10 years ago, the self-cleaning balls carry not only the name of the province where they were born but also GUNMA-CHAN, mascot of the province born in 1994 and sacred mascot champion in Japan in 2014.


    What is a joucament?

    The joucament - a contraction of the word 'jouet" (toy) and "médicament" (medication) in French language - differs from a therapeutic toy because it is not signifying in the psychiatric sense, does not have the function of correcting or helping to correct a particular disorder , is also not intended for Special Education Needs, but has features to prevent or alleviate the consequences of a pathology.


    The refrigerated teething ring, therapeutics teddy bears, ... are inert.

    The cold, the heat, ... relieve.

    The design itself participates in the treatment because of its reassuring or soothing characteristics.

    The placebo effect, unanimously recognized, is an integral part of the treatment, both for the patient and his emotional environment and brings serenity where the pain should be.


    Unlike existing products, GUNMA is the first toy with active principle, ie destroying bacteria, viruses, pollens and certain odors.


    GUNMA is certainly the precursor of a new family of products combining active principle, preventing one or more pathologies and amusement.


    "Praestat cautela quam medela", ie "Prevention better than cure" is the motto of the GUNMA ball.

  • Material:

    Photocatalytic raw material


    Cleaning : 
    Self-cleaning ball.
    Wash with water to maintain a permanent self-cleaning effect.

    Safety :

    The antiviral effect of the photocatalyst is expressed on the surface of the photocatalyst, and does not show any direct effect on surrounding air.

    Only the infectious agent in direct contact with the surface of the bullet will be destroyed.

    For children starting 6 month.
    Complies with toys safety standard BS-EN 71 and EU REACH Directives.  Tested according to JIS R1702 - Test method for antibacterial activity of photocatalytic materials and efficacy.
    Safety assessment in France - Technical documention in Japan.
    Resist to 90 Newton pull-out test.
    Resistant to scratches and bites.

    Permanent effect

    Warranty :
    This product is guaranteed for 5 years.

    Recycling :
    This set ie made with recyclable raw materials.

    Origin :
    Made in Japan.