This solid wood knife holder looks well made with a strong hold. The holder attaches to the wall with 2 screws and hooks on the back of it. 

One note, in case it makes a difference,  the bar is not all straight angles - the long sides of are slanted (no impact on functionality.) Also, mine came with a couple of dings in the side, despite perfect packaging.  So the wood must be very soft. 

Overall, this looks like an elegant and functional tool. Would recommend.