The Kingsbox Sword vertical barbell wall rack was very good accepted among our clients, since we received quite a lot of praise and even some good suggestions for improvements. Hence the Sword Barbell blocker.The blocker has to be attached to the wall, just beneath the upper part (where you put the barbellsin). It will ‘catch’ the lower part of the barbell so it doesn’t hit the wall directly and will prevent any kind of damage to the wall or barbell.Like the Sword rack, also the protector is made of laser-cut steel.