Very large and easy to stand on block shapes help build confidence needed for stabilization on the wall.
Bar color may vary.
Dimensions:
Square Block: 3" x 3" x 3 1/2" tall.
Rectangle Block: 5" wide x 9" long x 3 1/2" tall
Handle Bar: 1 1/4" x 10" long
These attach with a 3/8" bolt and one screw so that the hold doesn't spin.