This Rectange 6pce Cookie Cutter set contains:
Rectangle 1.5cm x 3cm,
Rectangle 2.3cm x 4.1cm,
Rectangle 3.1cm x 5.2cm,
Rectangle 3.9cm x 6.3cm,
Rectangle 4.7cm x 7.4cm,
Rectangle 5.5cm x 8.5cm 
These cutters are stainless steel so they are dishwasher safe. They can be used to cut play dough, clay, cookies, sandwiches, fairy bread, fruit, pastry and cheese.