it is necessary tools to divide test speicmen into several specimen with certain weights for further test , 

suitable  material :    aggregate,  sand, gravel, and similar , 

Specifications: 

1.slot width :  7mm

2. Slot Qty :  12

3. Material :  Galvanised Steel    

5. receiving pan :   2pcs

Purchasing notice :

1.  19mm, 25.4mm and 38mm in slot width   available in our stock , 

 2.  only with 2pcs receivers in factory list,  more in special order .

 3.  Packed in plywood case ,   shipped by long sea transportation