They're the classroom craze that has been sweeping the nation with their spinny arms and ball bearing centres.
Originally designed as a soothing mechanism for children with such conditions as anxiety and ADHD, fidget spinners have found their appeal spreading further afield.
However, in certain Norfolk schools they have been judged to be a distraction and have been banned from the classroom.
In a letter sent to parents, Flegg High School in Martham has explained that as of Monday, May 15, the gadgets will no longer be allowed in the classroom, unless specific permission has been granted.
Tim Fair, assistant principal, wrote: 'Fidget toys have always been something that we have had at Flegg High Schools and until now, children with additional support needs have only ever really used them.
'We believe that although they can aid learning among some children they are significantly affecting performance in class.
'These seemingly harmless spinners are being taken out during class, causing a distraction to students and staff.'
Parents from schools including Hellesdon High School, Jane Austen College, Peterhouse Primary, North Denes Primary, Ormiston Herman Academy and Northgate Primary have also been in touch to say the gadgets have been banned from their child's classrooms.
A letter from Hellesdon High to parents said the spinners can be 'disruptive to learning, dangerous and an unnecessary source of conflict'.
In the letter from Flegg High, Mr Fair added: 'In line with the actions being taken by other schools in the region we are prohibiting the use of fidget spinners during lessons and transitions between lessons at Flegg High School by all students form Monday, May 15.
'Those students with a specific need that has been identified by the school or other professional will still be permitted to use appropriate items but in class, if they are being used, they must be used discreetly and kept below the desk and out of the sight of teachers and fellow students.
'Flegg High School has issued a number of these items to students with genuine needs and all staff will be provided with a list of those students in the coming week. From Monday (May 15) any student not on the list and using the spinners in class may face having their item confiscated.'
Has your school taken any action regarding fidget spinners? Email education corespondent Lauren Cope on lauren.cope@archant.co.uk
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