Piston Ring Compressor 6"*175mm with Safety Valve -Capacity:6*175mm -3"*125mm -4"*175mm Piston ring compressor 6"*175mm with Safety Valve   Piston ring compressor# Self locking ratchet pawl preventspremature release and allows positivelocking action.# 4"height, capacity 3-1/2"to7"(90-175mm CAPACAITY:3"*125MM-9*9*9cm/0.28kg4"*175MM-11*7*9cm/0.32kg6"*175MM-8.5*7*15.5cm/0.55kg  

Piston Ring Compressor 6*175mm with Safety Valve