This is a pack of four replacement ProTek R/C "SureStart" 3mm Square Nuts, and are intended for use with the ProTek R/C "SureStart" 1/8 off road starter box (PTK-4500).
We are currently rebuilding our track for the Spring. A fresh new layout is going in as we speak. The track should be up and running again on March 5th. This is at our Winchester Location. Stay Tuned for Updates!