The ET-1004 Travel Aluminum Tripod from Sirui is a 4-section support with a flip leg lock system that you can disengage to give you the ability to extend the legs along with the standard rapid center column to a maximum height of 55.1". With its three variable leg angles and independent leg spread, the tripod&';s legs can conform to uneven terrain; splaying the tripod&';s legs out and switching the standard center column to the included short column, the support can go to a minimum height of 5.1". The legs fold in the reverse to a compact 16.5" to travel with the tripod, and the rubber feet on the legs prevent the tripod from sliding on smooth and flat surfaces. The ET-1204 Travel Carbon Fiber Tripod from Sirui is a 4-section support with a flip leg lock system that you can disengage to give you the ability to extend the legs along with the standard rapid center column to a maximum height of 55.1". With its three variable leg angles and independent leg spread, the tripod&';s legs can conform to uneven terrain; splaying the tripod&';s legs out and switching the standard center column to the included short column, the support can go to a minimum height of 5.1". The legs fold in the reverse to a compact 16.5" to travel with the tripod, and the rubber feet on the legs prevent the tripod from sliding on smooth and flat surfaces. The ET-2004 Travel Aluminum Tripod from Sirui is a 4-section support with a flip leg lock system that you can disengage to give you the ability to extend the legs along with the standard rapid center column to a maximum height of 57.1". With its three variable leg angles and independent leg spread, the tripod&';s legs can conform to uneven terrain; splaying the tripod&';s legs out and switching the standard center column to the included short column, the support can go to a minimum height of 5.3". The legs fold in the reverse to a compact 16.9" to travel with the tripod, and the rubber feet on the legs prevent the tripod from sliding on smooth and flat surfaces. In addition, the feet retract back to reveal metal spikes to further stabilize the support on softer terrain. The ET-2204 Travel Carbon Fiber Tripod from Sirui is a 4-section support with a flip leg lock system that you can disengage to give you the ability to extend the legs along with the standard rapid center column to a maximum height of 57.1". With its three variable leg angles and independent leg spread, the tripod&';s legs can conform to uneven terrain; splaying the tripod&';s legs out and switching the standard center column to the included short column, the support can go to a minimum height of 5.3". The legs fold in the reverse to a compact 16.9" to travel with the tripod, and the rubber feet on the legs prevent the tripod from sliding on smooth and flat surfaces. In addition, the feet retract back to reveal metal spikes to further stabilize the support on softer terrain.