Bought for the caravan my ferrules. That would be one of the best investments in recent years on a camping holiday. These ferrules we used everywhere. Previously, we have to attach greatest structures built to any things of the tent. Now, water canisters (9Liter) with the clamp at the tent pole mounted ready. The holding force is madness. Were everywhere at once these ferrules in use. Also have additionally the smaller well appointed. Just awesome.