Ikea Trofast Activity Lid 

This listing is for the graveyard counting tray lid 

A large lid to fit the large trofast trays 

This lid is hollow with 10 grave trays made up of three pieces, that you simply glue to the underside of the lid, and glue the 3mm solid pieces to the bottom to form trays. 
You can then pop things like chick peas and beads into the graves for counting. 
The graves have numbered headstones and numbered coffin lids, which you can match up to aid counting. 

The set comes with one skeleton which grown ups can hide in one of the graves, then perhaps do a simple sum, and the little ones can open the grave that they think is the right answer to see if the skeleton is there ! 
 
This product is for the Large Trofast Trays and is 42cm x 30cm