Precision Rubber Corner & Boundary Pole Base Weighted rubber base for use on AstroTurf or hard surfaces. Comes with additional upright socket for use with 1 1/4" (32mm) spiked and non spiked poles For use with :[TR484] Precision Collapsible Corner Posts (Set of 4)[TR301] Precision “Sprung” Corner Posts - Fluo Yellow (Set of 4)[TR302] Precision Corner Posts (Pack of 4)[TR704Y] Precision Split 2pc Boundary Pole (Yellow)[TR570] Precision Boundary Poles Set of 12[TR571] Precision Junior Boundary Poles (Set of 12)[TR570S] Precision Boundary Poles (Set of 12) (Red)[TR570W] Precision Boundary Poles (Set of 12) (White)[TR570Y] Precision Boundary Poles (Set of 12) (Yellow)[TR728] Precision Telescopic Boundary Poles (Set of 12)[TR582] Precision Spring-Base Boundary Poles Specifications: Dimensions: H:22.6 x W:23.1 x D:8.4 cm Model Number: TR426