Giottos YTL PRO Carbon Fiber Tripod - 72in., Black YTL8383 Y-Tube centre column - when folded the tripod is 30% more compact when compared to a similar size regular tripod Leg Angle Adjustment Locks - 3 positions so the tripod can be operated at low level Spiked Feet - optional spiked extra - for improved stability. A removable rubber foot covers a metal spike Tripod Thread - used to join your tripod and head can be swapped from 3/8" to " making it compatible with alternative tripod heads QEL - Quick Easy Lever leg locking system, lets you extend or shorten a leg without taking your eyes off your subject