Safety Sports Marker Pop Up Cones which are high visibility but designed to collapse - squish - if stood on, which make them much friendlier. Bright orange non-rigid plastic, and a good choice for children's classes.
They're very light, and easy to pack and carry around - a stack of these takes up very little room in your coaching bag - but very easy to see on court.
Set of 10 Pop Up Cones. Height: 22.5 cms.
Also available in sets of 20.