The Benbo Trekker is a unique (and slightly awkward) tripod with some unique geometry. The legs and column all pivot along a large bent bolt (hence "Benbo") that is secured with a single large locking handle, so they can be locked and unlocked at once. The legs are also "upside down," so that the sealed, larger-diameter sections contact the ground. This allows the tripod to be used in wet conditions where a normal tripod would suck water up into its leg mechanisms as they're retracted. The centre column pivots freely, and can be secured at nearly any angle, ideal for macrophotography in the field. Yes, it's a bit strange to use, but if you need what it does, nothing really does a better job of it. In excellent condition, with a compact ball head.