TeleVue's longer, heavier 4" scopes are best matched to the rock-solid Gibraltar mount. The larger bearing surfaces and thicker wood legs best handle the loads, especially for high power viewing. The Gibraltar tripods are finely crafted and American made in a choice of solid ash or walnut wood for beauty and quick vibration dampening. Leg extensions raise the tripod height to 5 feet, still ideally sized for use with the Air-Chair observing stool. An accessory tray ties the legs together for rigidity.