I just changed from Chromes on my Fender Jazz strung through body. These are the flats I remember as a teen. This is the feel and the sound I've been looking for. These have a more silky feel than Chromes and a more solid fundamental. Only available 45-100 through body. About the same tension as Chromes. Don't hesitate to buy these. Got them through Basstringsonline.com, they have the best price.