I found several search results related to tweezers, but none of them specifically mention "self-clip tweezers." Therefore, I cannot provide product details, positive or negative reviews, or ingredients or materials for this specific type of tweezers. However, I can provide some general information about tweezers based on the search results:

• Tweezers are tools used for plucking or removing small objects, such as hairs or splinters, from the skin or other surfaces.
• They come in various shapes, sizes, and materials, such as stainless steel, plastic, or titanium.
• Some tweezers are designed for specific purposes, such as eyebrow shaping or ingrown hair removal.
• Tweezers can be sanitized with alcohol wipes or peroxide, and some can be autoclaved or soaked in barbicide.
• Optical tweezers are a type of sophisticated instrument that uses light to manipulate and study objects at the single-molecule level.

In summary, while I cannot provide specific information about self-clip tweezers, I hope this general information about tweezers is helpful.