Hot Racing aluminum 43mm internal spring air shocks for the Losi 1/24 Micro Rock Crawler and Trail Trekker.YOU WILL RECEIVE:- Four (4) assembled aluminum shocks- Eight (4) shock end pivot balls- Three (3) spring sets (one set factory installed in shocks)- Installation hardware kit (M2.5)REQUIREMENTS:- Simple hand tools- Installation on the vehicleCOMMENTS:- A drop of light weight silicone oil in each shock helps facilitate smooth shock action- Replaces Losi LOSB1722Features:CNC machined aluminum shock bodiesStainless steel shocks shaftsAir dampingInternal springs, including three spring rate optionsSpecifications:Extended center to center length: 43mmCompressed center to center length: 33.5mmOverall length: 48.7mmBody diameter: 5mmShaft diameter: 2mm