... safe 3. heat resistance 4. patented product 5. no noise self closing damper Applied for many kinds of hinge which are used ... , ice cuber lid, refrigerating cabinet lid, refrigerator cover, closestool lid, toilet lid, stinkpot lid, piano lid, etc. T seriesModel No.Torque ... is held at fully opening position, then releasing to fully closing position. (approx. 10-20 seconds / open-close cycle) Working ...