I.Hand lockIs it used in the same way as with ball locks?
The usage of lever locks and ball locks is similar. Due to their different appearances, lever locks operate by rotating the handle, while ball locks operate by rotating a circular handle. However, ball locks are structurally simpler and are typically used for interior doors.
Two, which is better, a hand-operated lock or a round lock?

based on current market trends, handle locks are more commonly used in mid-to-high-end residential applications. The following details the advantages of handle locks and ball-shaped locks to assist consumers in their selection.
1、Handle Locks: Handle locks are categorized into separate locks, integrated locks, and quick-install three-bar locks. The materials used are diverse, including zinc alloy, stainless steel, copper, and aluminum alloy. In terms of style, interior door locks come in three main types: European, Chinese, and modern minimalist. To match various furniture styles, the shapes and colors of the handles are diverse and colorful. These handle locks are generally safe and are commonly used on entrance doors and room doors. They are also suitable for residential buildings, offices, and hotels. Handles that have undergone electroplating and electrostatic spraying have excellent wear resistance and corrosion resistance. When selecting handles, it is important not only to ensure they match the interior décor style but also that they can withstand significant pulling force, typically requiring a pulling force of at least 6 kg.
2、Round-shaped door locks: The inner and outer handles (knobs) are round in shape, providing a full and satisfying tactile experience. Round-shaped door locks can be made from various materials, such as wood, artificial stone, metal, and plastic. Round-shaped door locks are used for installing locks on wooden doors, steel doors, aluminum alloy doors, and plastic doors.