Or is that new blocks on the block ?
Not an advert because I'm not selling them but coming to a store near you shortly.
5C collet blocks in hex and square, been around for years, very handy for dropping in the vise and doing to odd quick and dirty hex or square by just turning the block over with the part in the 5 C collet.
Ideal for laying down but not so handy stood up.
Allow me to present the same style of block but in ER32 format.
Advantages are shorter, can stand upright on the ground to a gnats left bollock rear face, no gaps from 0.5mm to 20mm with the ER 32 series collets. That's 20 thou to just over 3/4" for the unwashed.
Added bonus is when used in the horizontal mode because the nut is larger than the body the back surface of the nut can be used as a dead stop in the vise.
Very precise macro photo reworked in photoshop to give the impression of a blured image [ not easy I can assure you ]
PS, The floor has also been done in Photoshop.