This video captures a group of young boys, likely elementary school-aged, engaged in an activity within what appears to be an indoor gymnasium in Izhevsk, Russia. The boys are dressed in red t-shirts and black shorts (with one boy on the far right wearing khaki shorts) and are equipped with green and black safety harnesses. The primary activity involves the children actively handling and adjusting the long green straps of their harnesses. They are seen pulling, securing, and manipulating the straps, suggesting they are either learning how to correctly put on the harnesses or are making final adjustments before an activity. Their expressions are largely focused and concentrated, indicating their engagement with the task. Notable details include the wooden gymnasium floor with yellow court markings. In the background, red metal structures, possibly wall bars or a climbing frame, and wooden benches are visible, reinforcing the setting as a sports or training facility. One of the harnesses clearly shows the brand name "VENTO" on its chest strap. The indoor environment is brightly lit, indicating a daytime setting for this supervised activity, likely related to physical education or adventure training.