Learning resources litre set invicta 120559 the learning resources litre set 5 containers regular shapes demonstrates how the same amount of liquid appears to be more or less when poured into containers of different shapes the litre set contains a flat cylinder cube rectangle and one litre cylinder which all hold 1 litre and a half litre cylinder each is clearly marked so that smaller amounts can be measured invicta 120559 learning resources litre set 5 containers regular shapes