A ready smooth groove between the copper wheels that will make the embedder work more easier. Total length: 22 cm ( 8.7" ). Length of Wood handle: 11.5 cm ( 4.5" ). Length of metal tube: 7.5 cm ( 3" ). Every model of electrical plug is available. 30WŁ¬220 V/110 V. Weight: 250 grams ( 8.8 Ounces ).