Self-locking Bricks Moc Building Block Technical Parts 1pcs Technical Shock Absorber 9.5l (hard Spring) Compatible With Lego - Model Building Kits - AliExpress
Technic, Shock Absorber 6.5L - Hard Spring
BrickLink - Part 95292c01 : LEGO Technic, Shock Absorber 9.5L (Extra Hard Spring) [Technic, Shock Absorber] - BrickLink Reference Catalog