These Schumacher Racing Products big bore shock pistons feature a 2-hole design and are sized at 1.60, tuned to control damping fluid flow through the shock body. Sold as a pair, they are a factory replacement for big bore shock assemblies across compatible Schumacher 1:10 platforms. The black finish helps with visual identification when mixing piston configurations during shock tuning. Features: 2-hole damping configuration 1.60 size rating Big bore shock compatible Sold as a pair Black finish for easy tuning identification 7/7/26 cs