This is a Durable Stainless Steel Elongated Float Ball that can be used in a variety of Liquids, even mild corrosive. Approximately 7" long and 2-1/2" diameter. This Elongated Float is equipped with a 1/4" x 20 threaded mounting hole. Will work with 9038 Square D switch by Schneider Electric. Some friends of mine manufactured these for a manufacturer and I have 111 of these available. FREE SHIPPING to adjoining 48 States. Contact Ken for additional information, Five seven three-864-Two five four seven. I am here to help, just give me a call. I will consider an offer of $15.00 in lots of 10 or more, also if local pickup, and maybe $16.00 in lots of 5 or more. but no less.