This 2-power (2x) nose piece barlow allows you to double to power of your eyepieces when used with William Optics binoviewers. It also makes it easier to reach focus with most telescopes. It can be screwed onto 1.25" eyepieces as well as binoviewers. For even more magnification, it can be placed after the optional binoviewer extender.

Manufacturer part number: E-BINO-B2