Locking Gas Spring for Bus Seats 1.Damper effection 2.Maintenance-free ... -100051026100285300-1000KQ-100061028255620300-1200KQ-120011228255620300-20003. Usage:auto seats, hospital beds, coach seat back4. Features:1) ... No noise, smooth operation5) Easy installation6) Competitive price, high-quality, fast delivery, good service5. Packing:1) As standard, ... good services. Locking Gas Spring for Bus Seats