The best buy in clamps so far. Nigh on indestructible and worth every penny get one for your rack especially if using curved bars, because they allow for the angle alterations sometimes necessary when using racks with percussion or drum kit/keyboard set ups. this is especially the case for mounting 2 curved bars on each other and can help with uneven floor surfaces or even crafting a rack for stage presence/shows. I like to mount small satellite speakers onto my drum rack at home and these clamps are ideal for placing them at just the right angle between music stands, laptop, interfaces and modules. A useful add on clamp for many occasions.
Come on! It is a Gibraltar product, so quality wise it is a no brainer! On the downside: Finding the right angle is a bit awkward, can be a pain in the... certain area, but after finding it: lock it and forget it. Recommended!