For easy & safe centering of the sun - Findershoe base (compatible with findershoe from vixen, baader, skywatcher, gso & etc) - 1/4" connection to mount on your telescope tube ring. - Metal design - Black anodised SPECIFICATIONS: - Length: 68mm - Total height: 41mm - Weight: 80g Don't ever look directly at the Sun through a telescope or in any other way, unless you have the proper filters.