To select the correct size rod for your STP model - click here: "ERECTION ROD SIZE RANGE". 

To use, simply slide the Erection Rod inside the funnel of your STP and you are ready to go! The erection rods are hand made so light imperfections or bubbles may naturally occur in the pouring process. Use rod with care and leave plenty of room from the top to prevent the rod from puncturing and/or tearing the softer front tip of your STP.

Quick Tip: We recommend applying a water based lubricant to the silicone erection rod before insertion for ease of insertion.