This Square D 9007WJ acetal resin wobble stick extension is for use with a 9007JKC multi-directional universal head (sold separately). Square D switches and components are manufactured by Schneider Electric. Square D brand pressure, float, and limit switches have been synonymous with safety, quality, and reliable performance for over 100 years. First launched by Detroit Fuse and Manufacturing in 1902, the Square D brand and its products continue to earn customer trust today.