Add enhanced versatility to your strength machine workouts with the Primal Performance Series Magnetic Weight Stack Adaptor Pin, which smoothly inserts into the weight stack of pin-loaded machines allowing you to load Olympic weight plates, whether in small increments for progression or to increase the weight overall.  

Weight plates can be added safely, securely and without any risk to the stack, the flooring, or the user. 

Please note: In order to ensure correct operation, insert the adaptor pin only once the entire weight stack is in use. Always insert the adaptor pin as low as possible on the weight stack rod.