The Monoball p0 With Fliplock Quick Set Device is a sturdy, lightweight ball head for photography by Arca-Swiss. The typical tightening screws have been replaced by a collet-style lock ring. Ergonomic and intuitive, it provides comfortable single-handed control, while the other hand is free to manipulate the lock-ring. The ball head is equipped with a gravity-compensation system; by way of accruing friction, it prevents forward tilting of heavier cameras and longer lenses.Compatible with Monoball Classic systemsFeatures Fliplock quick-release plate