The Gitzo GSLVLS Systematic Leveling Base (Without Video Adapter) is a tripod accessory designed to enable photographers to set up perfectly level shots quickly and precisely with their Gitzo Systematic Tripods and heads.This model is ideal when shooting with a flat-based video head or in landscape photography. A head can be attached onto the leveling base?s standard 3/8'' screw, and the lever on the side tightens the screw securely against the head. The GSLVLS fits onto any Gitzo Systematic tripod via the optional 75mm video adapter GS3321V75 (for Series 3and4 tripods) or GS5321V75 (for Series 5 tripods).The GSLVLS is lighter and more ergonomic thanks to its new grip and replaces the previous GS3121LVL. It is made of lightweight, resistant aluminum, weighs 370 grams, 12 cm high.