I purchased this last year, but it's been stored at home with very little use. It's for viola, size S, and made of maple. Both legs were used by inserting them into the center screw hole, and the other screw holes were not used. (Since Mach One's screw holes are made of wood, there may be some chipping when inserting the legs into the screw holes.) This item has been used very little, so there is almost no wear on the screw holes, and the legs do not wobble. Although there are individual differences in perception, I personally found that the sound projection was natural and very good, and I have used similar items, replacing them several times. I plan to ship it with the legs detached for packaging.