Good news for users who want to use Daiwa handle on Shimano reels. SD Connect is an abbreviation of attachment shafts that can attach Daiwa handles to Shimano reels. Small parts, but unlimited versatility! Please consider this opportunity! SD Connect is for left-hand winding handle. It is not compatible with right hand winding. If you install the SD Connect to an external handle such as ZPI, it may be tight when you install it. In such cases, you can apply the oil and tighten it repeatedly to loosen it and then use it to make it easier to get in.