We ship from overseas countries, and the estimated delivery time is 14 to 20 days. If cannot catch the time, please do not purchase. Please refer to the first image; we will ship according to the contents of the first image. Magnification factor: 2XInterface with M42x0.75 threadWith T/T2(M42x0.75mm) male thread for T/T2 connectors.It has a T mount adapter so you can attach a DSLR camera with an available T-mount1.25 interfaceDoubles the magnification of any 1.25 eyepiece.Its easy to use;simply insert the eyepiece into Barlow lens;then insert the Barlow lens into the scope.Notice:This barlow allows you to be able to disassemble it, taking off the black lens portion allowing you to add it to other possible configurations.Specification: