Explore Scientific Standard Height Finder Scope Rings w/out Base. These Explore Scientific Finderscope 50mm Standard Height Rings hold your finder firmly yet gently with three adjustment points and the large heads are easy for adjustments even if you're wearing gloves. Explore Scientific Finder Scope 50mm Standard Height Rings are fairly quick and simple to install your finder with and you can adjust the height as you like. Specifications for Explore Scientific Finder Scope 50mm Standard Height Rings: Weight: 3.9oz; 110.6g Length: 73mm Width: 61mm Height: 93mm Package Contents: Explore Scientific Standard Height Finder Scope Rings Explore Scientific Standard height finder scope rings (Base not included)