This set of rails offers 1" to 1-3/8" deep rounded edges. They are very challenging for the beginner on vertical walls yielding a V2/3 difficulty.
On a 25-degree wall, this set yields V5 to V7 unless you attach/stack two of them together, creating a thumb catch so that they become pinches.
These are crazy hard V8+ on a 45-degree wall.
From shortest to longest.
6-1/2" long x 1-3/8" tall x 1" standing off the wall
7-1/2" long x 1-3/8" tall x 1" standing off the wall
7-5/8" long x 1-3/8" tall x 1" standing off the wall
8-3/4" long x 1-3/8" tall x 1-1/4" standing off the wall
9-5/8" long x 1-1/2" tall x 1-3/8" standing off the wall