It sounds like you are describing a popular style of heavy-duty kitchen shears, often marketed specifically for butchering or tough cutting tasks.

While I can't give you the exact details of a "Black & Brown" model from a specific brand without a brand name, here is a general breakdown of the features and benefits of these types of shears:

Heavy Duty Kitchen Shears: Key FeaturesFeatureFunction/BenefitHeavy-Duty ConstructionCrafted from thicker, high-quality Stainless Steel (often 3CR14 or similar), which is tougher and more corrosion-resistant than standard scissors, allowing them to cut through bone and tough materials without bending.Multi-Purpose UseSpecifically designed to cut through: Meat (e.g., trimming fat), Chicken/Poultry (spatchcocking, cutting joints/bone), Seafood (cutting shells, scraping fish scales with a serrated edge), and Vegetables (chopping dense root vegetables or herbs).Anti-Slip HandleThe Black & Brown handles are typically Ergonomic (contoured for comfort) and made of ABS plastic or TPR with a non-slip, textured grip. This ensures a secure hold, even when your hands are wet or greasy.Safety LockA Thumb-Activated Safety Lock or buckle is included to securely hold the blades closed when the shears are not in use, preventing accidental cuts during storage.Spring-Loaded ActionMany heavy-duty shears include a Built-in Spring that automatically opens the blades after each cut. This feature reduces hand fatigue and makes repetitive cutting much easier.Blade EdgeOften features a combination of a razor-sharp blade and a serrated edge on one side to grip slippery skin or bones while cutting.Dishwasher SafeMost modern, high-quality stainless steel shears are Dishwasher Safe, but for maximum longevity and to maintain sharpness, hand-washing and immediate drying is often recommended by manufacturers. Many are designed to come apart (take-apart design) for thorough cleaning.

This type of tool is designed to be an all-in-one kitchen helper, reducing the need for a separate knife and cutting board for many preparation tasks.1