This is the big Meade. It has a built-in R/A and declination drive. It has a white sonotube. Extension tube on 2" focuser. An 8x50 finderscope.One Meade plossl eyepiece. Extras include a JMI drive corrector, a Lumicon coma corrector and flattener both for photography, two 20" lens caps, and castors to roll it on. I am selling because of lack of use on this scope--I'm getting too busy!(unfortunately).