An alternative to having to move around the classroom and be able to check on the progress of children from the front of the classroom. The 10-count trays are designed to secure the counters in place so that children can hold the tray up without the counters falling out. The 100 counters included in the set have different colours on each side for a variety of mathematical learning possibilities. Pack of 10 frames and 100 double sided counters. 160 x 70 x 15mm.