Compatible with SureGrip quick-release cradles. Designed to fit 1.25-In (32mm) OD pole SureGrip cradles plug directly into and can be rotated to desired positioned using the release push button Made of durable anodized aluminum ensures stability and wear-resistance in the field Compatible with most popular quick-release cradles to hold data controllers Ideal for rtk and gnss surveys requiring a pole and a data collector.