These rod ends are available in a range of sizes and materials including:

3/16 x 3/16
1/4 x 1/4
5/16 x 5/16
3/8 x 3/8
7/16 x 7/16
1/2 x 1/2

Note, prices vary with size. The pricing for this item is for the smallest rod end. Largest is around twice that price. Please specify Right or Left when ordering.