Hello Medi! Thank you for your drafts; could you please use an other form of the left hammer? You can find our pavinghammer on "www.pavingtools.at" we call them "Pflasterhammer". Your designs are very, very good. We like them very much. Most interesting ones are #43, #48, and #29, #30. #29 and #30: Can you please place under the line our Homepage: www.pavingtools.at Thank you for your efforts :-) Mario and Carola Tomasek