Storage container for up to 6 paint blocks. FREE with purchase of every six paint blocks plus Free water brush ! (1 ratings) £0.00 This item is currently on backorder. This is the storage box for the paint blocks plus FREE water brush . It comprised the box and insert which can also be used as a mixing tray. This item is NOT FOR SALE as a separate item. You will receive one of these FREE with the purchase of any 6 paint blocks . YOU DO NOT HAVE TO ORDER THIS ITEM .