Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Vanguard Tracker 283AB 100 Professional Tripod
Product description: We coupled our popular, exceptionally-stable Tracker tripod with our best-selling ball head for one impressive kit! Tracker's legs can be individually adjusted to 3 different angles for use on uneven ground and/or low-angle shooting. The quick-flip leg locks are designed to hold heavy gear. Its hexagon-shaped center column offers additional stability. It comes complete with SBH 100 ball head, one outstanding fluid-like ball head that rotates 360 degrees and features fine-tuning functions. The tripod also features secure quick-flip leg locks with tension adjustment, large foam grips, a deluxe no-slip shoulder strap and a premium magnesium alloy canopy., We coupled our popular, exceptionally-stable Tracker tripod with our best-selling ball head for one impressive kit! Tracker's legs can be individually adjusted to 3 different angles for use on uneven ground and/or low-angle shooting. The quick-flip leg locks are designed to hold heavy gear. Its hexagon-shaped center column offers additional stability. It comes complete with SBH 100 ball head, one outstanding fluid-like ball head that rotates 360 degrees and features fine-tuning functions. The tripod also features secure quick-flip leg locks with tension adjustment, large foam grips, a deluxe no-slip shoulder strap and a premium magnesium alloy canopy. Tracker LT-28 Aluminum Tripod with SBH-100 Ball Head Unshakable foundation Tracker features rock solid aluminum alloy legs made to hold heavy gear and equipped with tension-adjustable quick flip-leg locks, a patented premium magnesium die-cast canopy, a hexagon-shaped central column and non-slip rubber feet. In other words, once your gear is set, it’s not moving until you want it to. Get low Tracker tripod’s legs can be individually adjusted to three different angles for use on uneven ground or for low angle shooting. Its sturdy, hexagon-shaped central column is also reversible for macro photography. It has secure quick-flip leg locks. Ahead of the competition What’s more, Tracker 283AB 100 comes with VANGUARD’s top-selling SBH 100 precision, fluid-like ball head, which rotates 360 degrees and features fine-tuning functions. It includes one bubble level and a double locking system.
Product feature: Hexagon-shaped center column that reverses for macrophotography, Quick-flip leg locks hold heavy equipment, Precision-cut, fluid-like ball head, Lightweight ball head turns 360 degrees and has fine-tuning function
Product brand: Vanguard
Target attributes: Weight
Answer: attribute: weight
value: None
source: None