They are quite hard to find because the length is "abnormal" to say the least, but I needed them to be exactly that length and took a chance. They are definitely strong and heavy. However, they came with no hardware and the lube they use to hold them is very sticky. Before installing, make sure your cabinet is adequately varnished as the grease from your hands will soak into the wood and require additional sanding to remove. Also, the "locking rubber" is very tight at the end of the movement and will pull a cabinet across the counter before releasing. So make sure what you put in is heavy enough to withstand the release force. Less than one star for lubrication and no gear.