1,this lockable gas spring is our best seller 2,When it lock,it will rigid. 3,120,000 times quality gurantee. 1,120,000 life times guarantee2,We are looking forward to cooperate with you, we will provide best service to you.if you want ,pls let us know the parameters .specifications:Usage: Toyota automobile.Features: 1, Gas: Nitrogen filled inside. 2, Color : black,silver,or as clients request. 3 ...