Key benefits accuracy and deep reach: extended bristles penetrate deep into the keyboard to remove dust and debris from hard to reach corners and cracks, leaving fewer hidden particles behind. Safe, thorough cleaning: soft yet sturdy nylon bristles with a finely sharpened tip reach deep into tight spaces without scratching delicate surfaces. Improved efficiency: a 4inch wide brush head covers more area per sweep, making cleaning faster while still delivering a thorough result on large surface items. Advanced cleaning design: builtin short brush head and a fine handle enable precise cleaning of delicate areas, removing dirt without leaving traces or scratches. What you get and how it works Material and construction: nylon bristles designed for safe, effective cleaning across keyboards and small electronics. Brush head: 4inch wide main brush for broader coverage, with a builtin short brush head for precision in tight spaces. Handle: fine, ergonomically designed handle for comfortable, controlled use. Specifications and compatibility Bristle material: nylon, soft yet sturdy for safe cleaning. Brush head width: 4 inches (approximately 10 cm) for efficient largearea cleaning. Target use: keyboard cleaning and related small electronics where dust collects in crevices and seams. Functions: penetrates deep into keyboards, reaches delicate areas, cleans without leaving residues or scratches. Use scenarios Regular keyboard maintenance in home or office: suitable for fullsize keyboards, laptop keyboards, and gaming keyboards to remove dust from key gaps and cracks. Cleaning large surface areas on electronics: effective for keyboards with large flat surfaces and surrounding panels, helping to clean quickly without missing spots. Delicate cleaning of tight gaps and seams: the short brush head and fine handle allow careful cleaning around key seams, hinges, and other tight spaces on laptops and compact devices. Practical guidance For results, use short, even strokes in between keys and along the edges of the keyboard. Use the builtin short brush head to target narrow gaps and tricky corners; switch to the main 4inch head for broader areas. Clean regularly to prevent dust buildup and help maintain keyboard performance and longevity.