This set contain 7pcs sealing O-ring and 1pcs gas intake valve rubber gasket for S. T. Dupont L2 and GY series lighters. The special sealing O-ring is perfect fit for Dupont L2 and GY lighters ,Excellent sealing ,Effectively solve the gas leakage for you . The Dupont lighter sealing rings are made of high quality rubber , which is high corrosion-resistant and integrally molded .It is durable and long service time. A great Dupont lighter repair set for your aging sealing washer. An inexpensive solution for your precious and noble lighter.