Material: High quality aluminum alloy. The usage life lasts much longer, more durable and stable. - Base supported stand increases photography stability. - Detachable spiked feet makes it compatible for all terrains even harsh condition, assuring safety and stability. - Anti-slip foam design to offer you comfortable hand feeling and prevent easy falling. - Non-slip rubber feet can be better balanced. - Twist Locking system let the locking force stronger,the operation more simple. - The 1/4"&3/8" camera screw suitable for most ballhead,and other equipment. - the last leg can combined with the tripod by removing retractable spike.