Lightning Loop makes a weighted training aid for pickleball paddles. The silicone loop stretches around the edge of a player’s own paddle, adds four ounces of evenly distributed weight for resistance drills, and fits standard paddle shapes and thicknesses. Lightning Loop is a single-product training-gear brand that sells to individual players and coaches through its own website, where it also publishes drill guides for using the loop in practice sessions. No headquarters location is published on its site.