150mm Square-Line Furniture Legs (Oak)

Where would you normally use wooden couch legs (or lounge legs) ?
As a support leg on the bottom of a lounge or chest.

What is it made out of ?
Oak (either Australian oak or American red oak)

What are the important dimensions ?
Overall height : 150mm (not including fixing screw)
Top of leg : 52mm Width x 52mm Depth
Bottom of leg : 30mm Width x 30mm Depth
Fixing screw : 15mm Height x 5/16” Diameter

Please note : This leg is square tapered evenly on all 4 sides.