More than 400 Abbots Langley schoolchildren took part in a "Hoopathon" to raise money for charity.
All 15 classes at Abbots Langley School, Parsonage Close, took part in a "Hoopathon", which involved children from reception to year 6 spinning hoops around their waists.
All the children used the hoops, which were provided by Powerhoop, for four minutes and the money raised throughout the event will go towards the RSPCA and the Parsonage Close school.
Rebecca Negrello, deputy head-teacher at the school, said: "Everyone had a great time. The children in particular had a great time.
"They felt quite proud that they could raise money while having fun.
"The adults were a bit nervous about it at first, but once they had a go, they seemed to enjoy it.
"We are hoping to make it an annual event. We would definitely hope to do it again. Powerhoop have also donated 15 of the weighted hoops to the school."
The event was set up by Nana Akua, a fitness and expert trainer who also goes by the name of LadyXsize, and the 42-year-old hopes the initiative will become a nationwide event.
She said: "The kids got to have a bit of fun while exercising and raising money.
"It's something that I am trying to do to increase fitness in schools and I am working with Richard Harrington to try and achieve this.
"My aim is to try and get it out across the country."