I will be selling unwanted items from my home and items requested by my family. Thank you for your interest. ◎ Please judge the appearance from the photos. ◎ Please consider these as junk items with unconfirmed operation. Please only purchase if you understand that these are used, second-hand items. The K. 28mm eyepiece is ideal for astronomical observation and is an excellent option for widening the field of view. - Model: K. 28mm - Type: Eyepiece Adapter Thank you for looking.