I bought these as I was converting a rims mounted pair of toms to opti-mount mounted system. These are such good quality, compared with the 'L' rod system I was using before. The chrome plating is of the highest standard, and the adjustment is so smooth, and locks in place really easily. There isn't much else you would want from this particular bracket. The size is perfect for fitting into a clamp or, as I did, stick it in a yamaha double tom holder on a bass drum.
These are quite heavy, but I guess you want that from a tom holder!