4-Section P-Bar Block set consists of four smaller, stackable renditions of our popular G-870 Parallel Blocks.  Like those, each of these new 48"L X 28"W X 20"H blocks has two white stripes to visually simulate P-Bar rails running lengthwise along top corner of one side--only these stripes aren't screened with ink. 

Instead we permanently attach to covers two 4" wide strips of white velcro pile--one each to top edge and top of adjoining side.  We also sew 4" wide velcro pile on the opposite side at the top and attach flaps with velcro hook both sides at the bottom so any one of the blocks can be securely stacked on top of another.

This design produces an extremely adaptable set easily able to be used as 4 mini P-Bar blocks, 4 spot blocks or a set of standard height P-bar blocks.