EASY MOUNTING- For mounting retro prisms and tripod mounted target systems making it easy to survey large areas. HEAVY DUTY- Anodized black aluminum is heavy duty and premium quality meant to last through wear and tear UNIVERSAL DESIGN- This heavy duty adapter fits all Tribrachs so you can easily use it and efficiently get the job done. fully compatible with leading manufacturers such as Trimble, Sokkia, Topcon, Leica, Nikon, CST/berger, Pentax, etc. LIGHTWEIGHT- 0.50 lb (0.23 kg) makes it portable and easy for application on any leveling plummet. AdirPro 700-01 Rotating Tribrach Adapter will allow the prism to be pointed after installation in the tribrach. The 700-01 adapter has 5/8" x 11 thread size. This AdirPro Rotating Tribrach Adapter is fully compatible with leading manufacturers such as Trimble, Sokkia, Topcon, Leica, Nikon, CST/berger, Pentax, etc.