PERFECTLY DESIGNED - The Braun 21B replacement head features a stainless steel mesh that fits your skin smoothly, designed to fit Braun Series 3 shavers including model 21B. It follows the contours of your face, allowing for effective and comfortable trimming and shaving across all facial areas. COMPATIBLE MODELS - This 21B Series 3 replacement shaver head is compatible with Braun S3 shavers including 300S, 301S, 310S, 320S, 330S, 340S, 360S, 380S, 3010S, 3020S, 3030, 3040S, 3050, 3090S, 350CC, 370, 390CC, 3050, 3090CC, and other compatible Series 3 models. HIGH PERFORMANCE - Designed for multi-use environments (wet & dry). The floating blade system with precision mesh adapts closely to the skin for a smooth, comfortable shave. Efficiently captures hair while minimizing skin irritation. REGULAR REPLACEMENT RECOMMENDED - Replace the shaver head every 6 months for optimal performance. The Braun 21B replacement foil and cutter help restore your shaver to peak efficiency, delivering a closer, more consistent shave. Color: Black Material: Metal Package Contents: 1 x Replacement Shaver Head 1 x Cleaning Brush Note: Light reflection and differences in display screens may cause slight variations in color between the product image and the actual item. Measurement tolerances may vary by +/- 1-3 cm.