Lavta String Set (Item Code: LAUS) Replacement string set for the Lavta. Avarez brand AS-700, includes seven 45 inch long strings in four envelopes, numbered 1-4. Envelope 1 has two nylon strings with .028 inch gauge. Envelope 2 has two nylon strings with .035 inch gauge. Envelope 3 has two silver wound silk & steel strings with .025 inch gauge. Envelope 4 has one silver wound silk & steel string with .028 inch gauge.