Ters is synthetic resin, they can be used like wooden printing blocks. Please check also our other offers, we have some more type sets, also complete sets, for sale. This item is in the category "Business & Industrial\Printing & Graphic Arts\Printing & Graphic Essentials\Type, Cuts & Printing Blocks". The seller is "vintage-letterpress" and is located in this country: DE. This item can be shipped worldwide.